To use all functions and improved performances
Update the software of the headset and “Sony | Headphones Connect” app to the latest version. For details, refer to the
following:
https://www.sony.net/elesupport/
Related information
Establishing a Bluetooth connection manually
Charging the headset
WF-L900
Follow the downloaded “Sony | Headphones Connect” app instructions.
Operating the headset
Tap the headset unit or in the area near your ear where the headset is worn (wide area tap).
(left/right): To play or pause music
(left/right): To skip to the beginning of the next track
Getting started
What you can do with the Bluetooth function
About the voice guidance
Supplied accessories
Checking the package contents
Replacing the fitting supporters
Parts and controls
Location and function of parts
About the indicator
Wearing the headset
Wearing the headset
Using only one unit of the headset
Operating the headset
3
About wide area tap
Using Quick Access
Power/Charging
Charging
Available operating time
Checking the remaining battery charge
Turning on the headset
Turning off the headset
Making connections
How to make a wireless connection to Bluetooth devices
Easy setup with app
Connecting with the “Sony | Headphones Connect” app
Android smartphone
Pairing and connecting with an Android smartphone
Connecting to a paired Android smartphone
iPhone (iOS devices)
Pairing and connecting with an iPhone
Connecting to a paired iPhone
Computers
Pairing and connecting with a computer (Windows® 10)
Pairing and connecting with a computer (Windows 8.1)
Pairing and connecting with a computer (Mac)
Connecting to a paired computer (Windows 10)
Connecting to a paired computer (Windows 8.1)
Connecting to a paired computer (Mac)
Other Bluetooth devices
Pairing and connecting with a Bluetooth device
Connecting to a paired Bluetooth device
Listening to music
4
Listening to music via a Bluetooth connection
Listening to music from a device via Bluetooth connection
Controlling the audio device (Bluetooth connection)
Disconnecting Bluetooth connection (after use)
About 360 Reality Audio
Speaking with someone while wearing the headset (Speak-to-Chat)
Sound quality mode
About the sound quality mode
Supported codecs
About the DSEE function
Making phone calls
Receiving a call
Making a call
Functions for a phone call
Making a video call on your computer
Disconnecting Bluetooth connection (after use)
Using the voice assist function
Using the Google Assistant
Using Amazon Alexa
Using the voice assist function (Google app)
Using the voice assist function (Siri)
Using the apps
What you can do with the “Sony | Headphones Connect” app
Installing the “Sony | Headphones Connect” app
Accessing support information from the “Sony | Headphones Connect” app
How to keep the software up-to-date (for comfortable use of the headset)
Important information
Precautions
5
When you have finished using the headset
To prevent burning or malfunction due to getting wet
When the headset or charging case gets wet
License notice
Trademarks
Customer support websites
Troubleshooting
What can I do to solve a problem?
Power/Charging
Unable to turn on the headset.
Charging cannot be done.
The available operating time is short, the battery power does not last long, the battery life of the left and right headset units is
different.
Charging time is too long.
Sound
No sound, no sound from one side
Low sound level
Low sound quality
Sound skips frequently.
Noise is heard during music playback.
Bluetooth connection
Pairing cannot be done.
Unable to make a Bluetooth connection.
The headset does not operate properly.
Cannot hear a person during a call/low voice from callers, your voice does not reach the person during a call/your voice is low on
the caller’s side.
Others
The headset does not operate correctly or wide area tap works unintentionally
An earache occurs
Resetting or initializing the headset
Resetting the headset
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What you can do with the Bluetooth function
The headset uses Bluetooth wireless technology, allowing you to do the following.
Listening to music
You can receive audio signals from a smartphone or music player to enjoy music wirelessly.
Talking on the phone
You can make and receive calls hands-free, while leaving your smartphone or mobile phone in your bag or pocket.
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About the voice guidance
In the factory settings, when the headset is worn in your ears, you will hear the English voice guidance via the headset.
You can change the language of the voice guidance and turn on/off the voice guidance using “Sony | Headphones
Connect” app. For more details, refer to the “Sony | Headphones Connect” app help guide.
https://rd1.sony.net/help/mdr/hpc/h_zz/
When pairing the headset for the first time after purchase or after initializing the headset (when there is no pairing
information in the headset), when entering pairing mode automatically by removing the headset from the charging
case/When pairing the headset manually and removing the headset from the charging case when in pairing mode:
“Pairing”
When automatically turning off due to low battery of the headset: “Battery is empty”
When the remaining battery charge of the headset is low: “Low battery”
When the Google™ Assistant is not available during software update: “The Google assistant is not available during
update. Please wait a moment until the update completes.”
When the Google Assistant is not available on the smartphone connected to the headset even when operating the
headset unit to which the Google Assistant feature is assigned: “The Google Assistant is not connected”
When Amazon Alexa is not available on the smartphone connected to the headset even when operating the headset
unit to which the Amazon Alexa feature is assigned: “Either your mobile device isn’t connected; or you need to open
the Alexa App and try again”
When the corresponding app is not launched even when operating the headset unit to which the Quick Access
feature is assigned: “App assigned to the Quick Access is not launched on the mobile device”
Note
It takes about 20 minutes when you change the language of the voice guidance.
When you initialize the headset to restore to the factory settings after you change the language of the voice guidance, the
language will also return to the factory settings.
If the voice guidance is not heard after changing the voice guidance language or updating the software of the headset, set the
headset into the charging case to turn it off, then remove the headset from the charging case to turn it on again.
Related Topic
Using only one unit of the headset
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Checking the package contents
After opening the package, check that all of the items in the list are included. If any items are missing, contact your
dealer.
Numbers in ( ) indicate the item amount.
Wireless Stereo Headset
USB Type-C® cable (USB-A to USB-C®) (approx. 20 cm (7.88 in.)) (1)
Fitting supporters (XS/S/M/L/XL 2 each)
M-sized fitting supporters come attached to the left and right units of the headset at the time of purchase.
Charging case (1)
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Replacing the fitting supporters
M-sized fitting supporters come attached to the left and right units of the headset at the time of purchase.
If you feel the size of the fitting supporters does not fit your ears, change the fitting supporters to another size that fits
your ears better. The size of the left and right fitting supporters may be different.
The fitting supporters are common for both left and right sides.
About the instruction manual video
Watch the video to find out how to change the fitting supporters and how to wear the headset in your ears.
https://rd1.sony.net/help/mdr/mov0039/h_zz/
Remove the fitting supporter.
1
Attach the fitting supporter.
A: Align
Align the protruding part of the headset with the hole part of the fitting supporter and firmly insert the fitting
supporter all the way. Do not attach the fitting supporter in a loose or skewed manner.
After attaching the fitting supporter, check that there is no floating between the fitting supporter and the headset.
2
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Location and function of parts
Headset
Charging case
Fitting supporters (left, right)1.
Tactile dot
There is a tactile dot on the left unit of the headset.
2.
Driver unit parts (left, right)3.
Microphones (left, right)4.
Housing parts (left, right)5.
Charging ports (left, right)6.
(left) mark7.
(right) mark8.
Built-in antennas (left, right)9.
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Related Topic
About the indicator
Checking the remaining battery charge
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Lid1.
Indicator (green/orange/blue)
Indicates the power, communication or charging status of the headset.
2.
Lid open button3.
Pairing/initialize/reset button
Used when entering pairing mode, resetting or initializing the headset.
4.
USB Type-C port
Using the supplied USB Type-C cable, connect the charging case to a computer or to an AC outlet via a
commercially available USB AC adaptor to simultaneously charge both the headset and the charging case.
5.
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About the indicator
You can check various statuses of the headset/charging case by the indicator on the charging case.
: Turns on in green / : Turns on in orange / : Turns on in blue / -: Turns off
Indication of the remaining battery charge
When both units of the headset are stored in the charging case: Displays the remaining battery charge of the headset
unit with less remaining battery charge between the left and right units of the headset.
When either the left or right unit of the headset is stored in the charging case: Displays the remaining battery charge of
the headset unit stored in the charging case.
When both units of the headset are removed from the charging case: Displays the remaining battery charge of the
charging case.
When the lid of the charging case is opened or closed, or when the USB Type-C cable is removed after charging is
complete, the indicator lights up as follows depending on the remaining battery charge.
When the headset is stored in the charging case and the remaining battery charge of the headset is 95% or higher /
When the headset is not stored in the charging case and the remaining battery charge of the charging case is 31% or
higher
- - - - - - - (lights up in green for about 6 seconds)
When the headset is stored in the charging case and the remaining battery charge of the headset is between 94%
and 1% / When the headset is not stored in the charging case and the remaining battery charge of the charging case
is between 30% and 1%
- - - - - - - (lights up in orange for about 6 seconds)
When the headset is stored in the charging case and the remaining battery charge of the headset is less than 1% /
When the headset is not stored in the charging case and the remaining battery charge of the charging case is less
than 1%
- - - - - - - (turns off)
When the headset is removed from the charging case, or when the headset is stored in the charging case, the indicator
lights up as follows depending on the remaining battery charge.
When the headset is stored in the charging case and the remaining battery charge of the headset is 95% or higher /
When the headset is not stored in the charging case and the remaining battery charge of the charging case is 31% or
higher
- - - - - - - (lights up in green for about 3 seconds)
When the headset is stored in the charging case and the remaining battery charge of the headset is between 94%
and 1% / When the headset is not stored in the charging case and the remaining battery charge of the charging case
is between 30% and 1%
- - - - - - - (lights up in orange for about 3 seconds)
When the headset is stored in the charging case and the remaining battery charge of the headset is less than 1% /
When the headset is not stored in the charging case and the remaining battery charge of the charging case is less
than 1%
- - - - - - - (turns off)
Charging status
While charging the headset / While charging the charging case
(lights up in orange)
15
When the battery is fully charged when charging starts on the headset/charging case
- - - - - (lights up in orange for about 1 minute, and then turns off)
When the battery becomes fully charged and charging is complete
- - - - - - - (turns off)
During charging, when the lid of the charging case is opened or closed / When the headset is set to or removed from
the charging case
- - - - - - (turns off for about 0.5 seconds, and then lights up in orange)
Abnormal temperature
- - - - - - - - - - - - - - - (repeatedly flashes twice in orange)
Abnormal charging
- - - - - - - - - - (repeatedly flashes slowly in orange)
Abnormal combination of left and right units of the headset
- - - - - - - - - - - - (repeatedly flashes 3 times in orange)
Bluetooth connection status
Pairing mode
- - - - - - - - - - - - - - (repeatedly flashes twice slowly in blue)
Connection process completed
(repeatedly flashes slowly in blue for about 5 seconds)
Other
Initialization completed
(flashes 4 times in green)
For details, see “Initializing the headset to restore factory settings”.
Hint
When the headset is worn, you can check various statuses of the headset by the voice guidance.
Related Topic
Charging
Checking the remaining battery charge
What you can do with the “Sony | Headphones Connect” app
About the voice guidance
Initializing the headset to restore factory settings
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Wearing the headset
About the instruction manual video
Watch the video to find out how to change the fitting supporters and how to wear the headset in your ears.
Text for video
0:00 / 1:16
Check the (left) and (right) marks on the headset.
Put the headset unit with the (left) mark into your left ear and the headset unit with the (right) mark into your
right ear. There is a tactile dot on the left unit of the headset.
A: Tactile dot
1
Check the position relation between the ear and the headset when you put the headset unit into your ear.
2
17
B: Position to insert the driver unit part
C: Position to support the housing part
D: Position to hook the fitting supporter
b: Driver unit part
c: Housing part (Insert the side with the charging port into your ear)
d: Fitting supporter
Hold the headset with your fingers.
3
Put the headset units into both ears.
To put the headset unit into your ear, follow the procedures below.
4
Insert the driver unit part (b) into your ear (B).1.
Rotate in the direction of the arrow so that the housing part (c) is at the position of the ear (C).
2.
Push the fitting supporter (d) into the ear grooves (D).3.
Check if the headset is worn properly.
Touch the fitting supporter (d) with your finger and check that it is in the ear grooves (D).
5
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If the headset is out of your ears, you feel uncomfortable when wearing the headset or your ears hurt
M-sized fitting supporters come attached to the left and right units of the headset at the time of purchase. When the
headset is worn following the procedures described above and you feel the size of the fitting supporters does not fit your
ears, change the fitting supporters to another size to comfortably and snugly fit your left and right ears.
For the proper sound quality, call sound quality, etc. to be effective
If the headset is not worn properly in your ears, tap operations or Speak-to-Chat speech detection may not work
correctly, or you may not obtain the correct sound qualities or call performance.
If any of this is the case, see steps
and and check that you are wearing the headset properly in your ears.
When attaching and removing the headset
In the factory settings, the built-in sensors detect when the headset is inserted in or removed from your ears, enabling
the headset to pause or resume music playback, as well as control the detection of tap operations and voice guidance.
When the headset is worn
You can tap the headset or in the area near your ear to play music, make and receive calls, etc.
You will hear a voice guidance corresponding to the operation and status.
When the headset is removed
When you listen to music while wearing both headset units in your ears, the headset will pause music playback if one
or both headset units are removed. When the headset is worn again, the headset resumes music playback.
When the headset is not worn for about 15 minutes after being removed from the charging case, the headset turns
off automatically to save the battery. Turn the headset on by putting the headset into your ears.
In order to prevent the headset from reacting incorrectly, music playback, making and receiving calls as well as other
operations cannot be performed by tapping the headset removed from your ears.
Hint
You can also play music, make and receive calls, etc. when only one unit of the headset is worn in your ear.
By using the “Sony | Headphones Connect” app, you can change the setting of automatically pausing and resuming the music
playback, or automatically turning off the headset.
Related Topic
Replacing the fitting supporters
Using only one unit of the headset
What you can do with the “Sony | Headphones Connect” app
Shake your head lightly and make sure that the headset is not out of position.
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Using only one unit of the headset
You can remove one unit of the headset from the charging case and use the unit by itself.
In this case, only the unit that has been removed from the charging case will turn on.
When you put on the other unit of the headset
The connection between the left and right units is established automatically, and you will hear the music or other audio
on both units of the headset.
Assigning functions to the left and right units of the headset
Depending on the headset unit you are wearing, some functions may not be available in the factory settings. In this case,
you can change the function assignments to the left and right units of the headset using the “Sony | Headphones
Connect” app.
Hint
Even if you are using only one unit of the headset, you can play music with the unit you are wearing.
When you play music or other stereo audio while wearing only one unit, you will hear monaural sound with the left and right
channels mixed.
You can also enjoy hands-free calls even when you are wearing only one unit of the headset. When you receive an incoming call,
answer the call using the unit of the headset you are wearing. If you put the other unit into the other ear while you are talking with
only one unit, you can talk with both units.
The Google Assistant feature can be assigned to either the left or right unit of the headset. When the Google Assistant feature is
assigned to the headset and you want to use only one unit of the headset, use the unit with the Google Assistant feature
assigned.
The Amazon Alexa feature can be assigned to either the left or right unit of the headset. When the Amazon Alexa feature is
assigned to the headset and you want to use only one unit of the headset, use the unit with the Amazon Alexa feature assigned.
Note
When Service Link is turned on with the “Sony | Headphones Connect” app, use the right unit of the headset. You cannot use
only the left unit of the headset.
Related Topic
Controlling the audio device (Bluetooth connection)
Functions for a phone call
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About wide area tap
Wide area tap is a function that detects vibration around the ears with the acceleration sensors that are built into the
headset and determines the tap operations.
By tapping not only the headset unit but also the areas around the ears where the headset is worn, you can perform
various operations such as music playback or phone calls.
The range in which the headset can detect tap operations is from around the tragus to the lower side and sideburn.
When tapping, use your forefinger to perform a harder tap within the tap detection area.
Some available operations
About the instruction manual video
Watch the video to find out how to use wide area tap.
https://rd1.sony.net/help/mdr/mov0040/h_zz/
Hint
In addition to tapping around your ear, tap operations are detected when you tap the headset unit.
If the tap operations cannot be easily detected, tap a little harder while adjusting the tap position.
When tapping the headset or in the area near your ear 2 or 3 times, tap it quickly with an interval of about 0.2 seconds between
taps.
You can change the function assignments to the left and right units of the headset using the “Sony | Headphones Connect” app.
Left Right
Tap twice
To receive or end a call
To play or pause music
To receive or end a call
To play or pause music
Tap 3 times
To reject a call or transfer it to a different device
To skip to the beginning of the next track
To reject a call or transfer it to a different device
To skip to the beginning of the next track
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Note
When the headset is not worn in your ears, tap operations cannot be detected.
The headset may not operate correctly when a vibration identical to a tap is detected from coughing or the
attachment/detachment of accessories around the ears, etc. When the headset reacts incorrectly, use the “Sony | Headphones
Connect” app to turn wide area tap off and switch to headset tap.
Related Topic
What you can do with the “Sony | Headphones Connect” app
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Using Quick Access
Quick Access is a feature that allows you to play content in the corresponding app by simply tapping the headset or in
the area near your ear.
Hint
To use Quick Access, you need to install the corresponding smartphone app and connect to the Internet. Some apps will require
you to sign in.
If the corresponding app is not launched even when operating the headset unit to which Quick Access is assigned, the voice
guidance “App assigned to the Quick Access is not launched on the mobile device” is heard from both headset units (or from the
headset unit you are wearing).
Related Topic
What you can do with the “Sony | Headphones Connect” app
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Open the “Sony | Headphones Connect” app and set the function of either the left or right unit of the
headset as Quick Access.
You can change the function assignments to the left and right units of the headset using the “Sony | Headphones
Connect” app.
For details on the “Sony | Headphones Connect” app, refer to the following URL.
https://rd1.sony.net/help/mdr/hpc/h_zz/
1
Operate the headset unit to which you assigned the feature to use Quick Access.
2
Left Right
Tap twice Quick Access 1 Quick Access 1
Tap 3 times Quick Access 2 Quick Access 2
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Charging
The headset and the charging case contain built-in lithium-ion rechargeable batteries. Use the supplied USB Type-C
cable to charge the headset before use.
About the charging time
The required time for fully charging the headset and the charging case is about 3 hours (*).
Set the headset into the charging case.
Put the left unit of the headset (the unit with the tactile dot) back into the left hole of the charging case, put the right
unit of the headset back into the right hole of the charging case, insert the units until they click, and then make sure
that the units are locked in the charging case.
Set the headset into the charging case, and when the indicator (orange or green) on the charging case lights up,
close the lid of the charging case.
1
Connect the charging case to an AC outlet.
Use the supplied USB Type-C cable and a commercially available USB AC adaptor.
Charging starts on the headset and charging case. The indicator (orange) on the charging case lights up.
After charging is complete, the indicator (orange) on the charging case turns off.
Remove the USB Type-C cable.
2
Time required for charging the empty battery to its full capacity. The charging time may differ depending on the conditions of use.
*
26
Charging the headset when you are outside
A rechargeable battery is built into the charging case. If you charge the charging case in advance, you can use it to
charge the headset when you go out without a power supply.
The required time for fully charging the left and right units of the headset is about 1.5 hours.
System requirements for battery charge using USB
USB AC adaptor
A commercially available USB AC adaptor capable of supplying an output current of 0.5 A (500 mA) or more
Personal computer
Personal computer with a standard USB port
We do not guarantee operation on all computers.
Operations using a custom-built or homebuilt computer are not guaranteed.
Hint
The headset can be also charged by connecting the charging case to a running computer using the supplied USB Type-C cable.
Note
Charging may not start if the headset is not set correctly into the charging case. Insert the headset units until they click and make
sure the headset units are locked in the charging case.
Be sure to use the supplied USB Type-C cable. Otherwise, charging may not be successful.
Charging may not be successful depending on the type of USB AC adaptor.
Depending on the settings for the headset functions and usage conditions, the speed of energy consumption for the rechargeable
battery may vary between the left and right units.
As a result, the charging time of the rechargeable batteries for the left and right units may differ. However, this is not a
malfunction.
The headset cannot be charged when the computer goes into standby (sleep) or hibernation mode. In this case, change the
computer settings, and start charging once again.
When the headset is placed in the charging case, if the indicator (orange) on the charging case lights up for about 3 seconds and
then turns off, the remaining battery charge of the charging case is low. Charge the charging case.
If the indicator on the charging case does not turn on even when the headset is placed in the charging case, the battery charge of
the charging case is empty. Charge the charging case.
If the headset is not used for a long time, the rechargeable battery usage hours may be reduced. However, the battery life will
improve after charging and discharging several times. If you store the headset for a long time, charge the battery once every 6
months to avoid over-discharge.
If the headset is not used for a long time, it may take longer to charge the battery.
Be sure to close the lid of the charging case to prevent the battery of the charging case from being consumed.
If there is a problem with the rechargeable battery of the headset or the charging case and something unusual is detected during
charging, the indicator (orange) on the charging case flashes.
It is recommended to charge in a place with an ambient temperature between 15 °C and 35 °C (59 °F - 95 °F). Efficient charging
may not be possible beyond this range.
If the problem persists, consult your nearest Sony dealer.
If the headset is not used for a long time, the indicator (orange) on the charging case may not immediately light up when
charging. Wait a moment until the indicator (orange) lights up.
If the usage hours of the built-in rechargeable battery decrease significantly, the battery should be replaced. Consult your nearest
Sony dealer.
Avoid exposure to extreme temperature changes, direct sunlight, moisture, sand, dust, and electrical shock. Never leave the
headset in a parked vehicle.
When connecting the charging case to a computer, use only the supplied USB Type-C cable, and be sure to directly connect
them. Charging will not be properly completed when the charging case is connected through a USB hub.
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Available operating time
The available operating times of the headset with the battery fully charged are as follows:
Bluetooth connection
Music playback time (AAC): Max. 5.5 hours
Music playback time (SBC): Max. 5 hours
About 90 minutes of music playback is possible after 10 minutes charging.
If you set the following functions, the available operating time of the battery becomes shorter than the ones described
above.
DSEE™
Equalizer
Speak-to-Chat
Function to launch the voice assist function by your voice
Service Link
Adaptive Volume Control
If you run the above settings at the same time, the available operating time of the battery becomes even shorter.
Communication time: Max. 2.5 hours
Standby time: Max. 11 hours
Hint
By using the “Sony | Headphones Connect” app, you can check which codec is used for a connection.
Note
Usage hours may be different from the time described above depending on the settings for the headset functions and usage
conditions.
Depending on the settings for the headset functions and usage conditions, the speed of energy consumption for the rechargeable
battery may vary between the left and right units. However, this is not a malfunction.
Related Topic
Supported codecs
About the DSEE function
Speaking with someone while wearing the headset (Speak-to-Chat)
What you can do with the “Sony | Headphones Connect” app
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Checking the remaining battery charge
You can check the remaining battery charge of the rechargeable batteries of the headset and the charging case.
If the remaining battery charge of the headset becomes low when you put the headset into your
ears or while using the headset
If a warning beep sounds and the voice guidance says, “Low battery”, charge the headset as soon as possible.
When the battery becomes completely empty, a warning beep sounds, the voice guidance says, “Battery is empty”, and
the headset automatically turns off.
When you are using iPhone or iPod touch
When the headset is connected to an iPhone or iPod touch over an HFP (Hands-free Profile) Bluetooth connection, it will
show an icon that indicates the remaining battery charge of the headset on the screen of the iPhone or iPod touch.
The display position is an example.
A: Remaining battery charge of the headset
The approximate remaining charge is shown at 10 different levels. B through E are display examples.
B: 100%
C: 70%
D: 50%
E: 10% or lower (requires charging)
The remaining battery charge of the headset is also displayed on the widget of an iPhone or iPod touch running iOS 11
or later. For more details, refer to the operating instructions supplied with the iPhone or iPod touch.
The remaining charge which is displayed may differ from the actual remaining charge in some cases. Use it as a rough
estimate.
When you are using an Android™ smartphone (OS 8.1 or later)
When the headset is connected to an Android smartphone via HFP Bluetooth connection, select [Settings] - [Device
connection] - [Bluetooth] to display the remaining battery charge of the headset in 10 different levels such as “100%”,
“70%”, “50%” or “10%” in the connected Bluetooth device column on the smartphone’s screen.
The operation above is an example. For details, refer to the operating instructions of the Android smartphone.
The remaining charge which is displayed may differ from the actual remaining charge in some cases. Use it as a rough
estimate.
Checking the remaining battery charge of the charging case
When the headset is removed from the charging case or the lid of the charging case is opened or closed when the
charging case is empty, if the indicator (orange) on the charging case lights up, the remaining battery charge of the
charging case is about 30% to 1%. The charging case cannot sufficiently charge the headset with this level of
remaining battery charge.
When the headset is removed from the charging case or the lid of the charging case is opened or closed when the
charging case is empty, if the indicator on the charging case does not light up, the remaining battery charge of the
30
charging case is less than 1%. The headset cannot be charged with the charging case in this case.
Hint
The remaining battery charge of the headset may be different on the left and right sides depending on how you use them.
When using both units of the headset, the remaining battery charge of the unit with less remaining battery charge between the
left and right units is displayed.
When using only one unit of the headset, the remaining battery charge of the unit you are using is displayed.
You can also check the remaining battery charge of the headset unit and the charging case with the “Sony | Headphones
Connect” app. Android smartphones and iPhone/iPod touch both support this app.
Note
If the headset and smartphone are not connected with HFP, the remaining battery charge will not be correctly displayed.
The remaining battery charge may not be properly displayed immediately after a software update or if the headset has not been
used for a long time. In this case, repeatedly charge and discharge the battery multiple times to properly display the remaining
battery charge.
Related Topic
What you can do with the “Sony | Headphones Connect” app
About the indicator
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Help Guide
Wireless Stereo Headset
LinkBuds
Turning on the headset
When the headset is set into the charging case
When the headset is not set into the charging case
When the headset is not worn in your ears for about 15 minutes after being removed from the charging case, the
headset turns off automatically. In this case, turn the headset on by putting on the headset into your ears. The headset
will also turn on when it is set into the charging case and then removed from the charging case.
By using the “Sony | Headphones Connect” app, you can change the setting of the headset so that it will not be turned
off automatically.
When the headset is turned on
When both headset units are removed from the charging case, the connection between the left and right units of the
headset is established.
The headset goes into Bluetooth pairing mode when turning on the headset for the first time after purchase or just after
initializing the headset.
Related Topic
Using only one unit of the headset
Turning off the headset
What you can do with the “Sony | Headphones Connect” app
Hold the charging case in your hand and press the lid open button to open the lid.
1
Remove the headset from the charging case.
The headset turns on automatically.
When you remove only one unit from the charging case, only the removed unit turns on.
2
32
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Help Guide
Wireless Stereo Headset
LinkBuds
Turning off the headset
When the headset is left removed
When the headset is not worn in your ears for about 15 minutes after being removed from the charging case, the
headset turns off automatically.
To turn off the power before the headset turns off automatically, place the headset into the charging case.
Hint
You can also turn off the headset with the “Sony | Headphones Connect” app.
Note
When the remaining battery charge of the charging case is not sufficient, the charging of the headset will not start. Charge the
charging case.
Related Topic
Charging
Turning on the headset
What you can do with the “Sony | Headphones Connect” app
5-031-118-11(2) Copyright 2022 Sony Corporation
Set the headset into the charging case.
Put the left unit of the headset (the unit with the tactile dot) back into the left hole of the charging case, put the right
unit of the headset back into the right hole of the charging case, insert the units until they click, and then make sure
that the units are locked in the charging case.
When the headset is set into the charging case, the headset will turn off automatically.
When the remaining battery charge of the charging case is sufficient, the indicator (orange or green) on the
charging case lights up and the charging of the headset will start.
1
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Help Guide
Wireless Stereo Headset
LinkBuds
How to make a wireless connection to Bluetooth devices
You can enjoy music and hands-free calling with the headset wirelessly by using your Bluetooth device’s Bluetooth
function.
Pairing
To use the Bluetooth function, both of the connecting devices must be registered in advance. The operation to register a
device is called “pairing”.
Pair the headset and the device manually.
Connecting to a paired device
Once a device is paired, it is not necessary to pair it again. Connect to devices already paired with the headset using the
methods necessary for each device.
Related Topic
Pairing and connecting with an Android smartphone
Pairing and connecting with an iPhone
Pairing and connecting with a computer (Windows® 10)
Pairing and connecting with a computer (Windows 8.1)
Pairing and connecting with a computer (Mac)
Pairing and connecting with a Bluetooth device
Connecting to a paired Android smartphone
Connecting to a paired iPhone
Connecting to a paired computer (Windows 10)
Connecting to a paired computer (Windows 8.1)
Connecting to a paired computer (Mac)
Connecting to a paired Bluetooth device
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Copyright 2022 Sony Corporation
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Help Guide
Wireless Stereo Headset
LinkBuds
Connecting with the “Sony | Headphones Connect” app
Launch the “Sony | Headphones Connect” app on your Android smartphone/iPhone to connect the headset to a
smartphone or iPhone. For more details, refer to the “Sony | Headphones Connect” app help guide.
https://rd1.sony.net/help/mdr/hpc/h_zz/
Hint
To pair a second or subsequent device, operate the button on the back of the charging case to enter pairing mode.
For more details, see “Pairing and connecting” corresponding to your device in the Related Topic.
Note
The connection with some smartphones and iPhone devices may become unstable when connecting using the “Sony |
Headphones Connect” app. In that case, follow the procedures in “Connecting to a paired Android smartphone”, or “Connecting
to a paired iPhone ” to connect to the headset.
Related Topic
Pairing and connecting with an Android smartphone
Pairing and connecting with an iPhone
Pairing and connecting with a computer (Windows® 10)
Pairing and connecting with a computer (Mac)
Connecting to a paired Android smartphone
Connecting to a paired iPhone
What you can do with the “Sony | Headphones Connect” app
Installing the “Sony | Headphones Connect” app
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36
Help Guide
Wireless Stereo Headset
LinkBuds
Pairing and connecting with an Android smartphone
The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the
headset for the first time.
Before starting the operation, make sure of the following:
The Android smartphone is placed within 1 m (3 feet) of the headset.
The headset is charged sufficiently.
The operating instructions of the Android smartphone is in hand.
Enter pairing mode on this headset.
When you pair the headset with a device for the first time after purchase or after initializing the
headset (if the headset has no pairing information)
When you pair a second or subsequent device (the headset has pairing information for other
devices)
1
Remove both units of the headset from the charging case.
The headset goes into pairing mode automatically when it is removed from the charging case.
When you put the headset units into both ears, you will hear a notification sound and the voice guidance say
“Pairing”, from both headset units at the same time.
1.
Set the headset into the charging case.
Put the left unit of the headset (the unit with the tactile dot) back into the left hole of the charging case, put the
right unit of the headset back into the right hole of the charging case, insert the units until they click, and then
make sure that the units are locked in the charging case.
1.
Close the lid of the charging case.2.
37
By closing the lid once, the headset units are straightened and locked in place, even if they were not locked in
the charging case before.
Hold the charging case in your hand and press the lid open button to open the lid.3.
Press and hold the pairing button of the charging case for about 5 seconds.
The indicator (blue) on the charging case repeatedly flashes slowly twice in a row and the headset goes into
pairing mode.
You can remove the headset from the charging case after entering pairing mode. When you put the headset
units into both ears, you will hear a notification sound and the voice guidance say “Pairing”, from both headset
units at the same time.
4.
Unlock the screen of the Android smartphone if it is locked.
2
Find the headset on the Android smartphone.
3
Select [Settings] - [Device connection] - [Bluetooth].
1.
38
About the instruction manual video
Watch the video to find out how to perform the pairing for the first time.
https://rd1.sony.net/help/mdr/mov0034/h_zz/
Hint
The operation above is an example. For more details, refer to the operating instructions supplied with the Android smartphone.
To delete all Bluetooth pairing information, see “Initializing the headset to restore factory settings”.
Note
If pairing is not established within 5 minutes, pairing mode is canceled. In this case, set the headset into the charging case, and
start the operation again from step
.
Once Bluetooth devices are paired, there is no need to pair them again, except in the following cases:
Pairing information has been deleted after repair, etc.
When a 9th device is paired.
The headset can be paired with up to 8 devices. If a new device is paired after 8 devices are already paired, the registration
Touch the switch to turn on the Bluetooth function.
2.
Touch [LinkBuds].
If Passkey (*) input is required, input “0000”.
The headset and smartphone are paired and connected with each other.
When the headset is placed in the charging case, the indicator (blue) on the charging case flashes slowly for about
5 seconds.
When you are wearing the headset, you will hear a notification sound from both headset units at the same time.
If they are not connected, see “Connecting to a paired Android smartphone”.
If [LinkBuds] does not appear on the Android smartphone screen, try again from the beginning of step
.
4
A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.
*
39
information of the paired device with the oldest connection date is overwritten with the information for the new device.
When the pairing information for the headset has been deleted from the Bluetooth device.
When the headset is initialized.
All of the pairing information is deleted. In this case, delete the pairing information for the headset from the connected device
and then pair them again.
The headset can be paired with multiple devices, but can only play music from 1 paired device at a time.
Related Topic
Wearing the headset
How to make a wireless connection to Bluetooth devices
Connecting to a paired Android smartphone
Listening to music from a device via Bluetooth connection
Disconnecting Bluetooth connection (after use)
Initializing the headset to restore factory settings
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Help Guide
Wireless Stereo Headset
LinkBuds
Connecting to a paired Android smartphone
Unlock the screen of the Android smartphone if it is locked.
1
Remove the headset from the charging case.
The headset turns on automatically.
2
Put the headset units into both ears.
When the headset has automatically connected to the last connected device, you will hear a notification sound from
both headset units (or from the headset unit you are wearing) at the same time.
Check the connection status on the Android smartphone. If it is not connected, proceed to step
.
3
Display the devices paired with the Android smartphone.
4
Select [Settings] - [Device connection] - [Bluetooth].
1.
Touch the switch to turn on the Bluetooth function.
2.
Touch [LinkBuds].
5
41
Hint
The operation above is an example. For more details, refer to the operating instructions supplied with the Android smartphone.
Note
When connecting, [LinkBuds], [LE_LinkBuds], or both may be displayed on the connecting device. When both or [LinkBuds] is
displayed, select [LinkBuds]; when [LE_LinkBuds] is displayed, select [LE_LinkBuds].
If the last-connected Bluetooth device is placed near the headset, the headset may connect automatically to the device by simply
turning on the headset. If this is the case, deactivate the Bluetooth function on the last-connected device or turn off the power.
If you cannot connect your smartphone to the headset, delete the headset pairing information on your smartphone and perform
the pairing again. As for the operations on your smartphone, refer to the operating instructions supplied with the smartphone.
Related Topic
Wearing the headset
Using only one unit of the headset
How to make a wireless connection to Bluetooth devices
Pairing and connecting with an Android smartphone
Listening to music from a device via Bluetooth connection
Disconnecting Bluetooth connection (after use)
5-031-118-11(2)
Copyright 2022 Sony Corporation
You will hear a notification sound from both headset units (or from the headset unit you are wearing) at the same
time.
42
Help Guide
Wireless Stereo Headset
LinkBuds
Pairing and connecting with an iPhone
The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the
headset for the first time.
Before starting the operation, make sure of the following:
The iPhone is placed within 1 m (3 feet) of the headset.
The headset is charged sufficiently.
The operating instructions of the iPhone is in hand.
Enter pairing mode on this headset.
When you pair the headset with a device for the first time after purchase or after initializing the
headset (if the headset has no pairing information)
When you pair a second or subsequent device (the headset has pairing information for other
devices)
1
Remove both units of the headset from the charging case.
The headset goes into pairing mode automatically when it is removed from the charging case.
When you put the headset units into both ears, you will hear a notification sound and the voice guidance say
“Pairing”, from both headset units at the same time.
1.
Set the headset into the charging case.
Put the left unit of the headset (the unit with the tactile dot) back into the left hole of the charging case, put the
right unit of the headset back into the right hole of the charging case, insert the units until they click, and then
make sure that the units are locked in the charging case.
1.
Close the lid of the charging case.2.
43
By closing the lid once, the headset units are straightened and locked in place, even if they were not locked in
the charging case before.
Hold the charging case in your hand and press the lid open button to open the lid.
3.
Press and hold the pairing button of the charging case for about 5 seconds.
The indicator (blue) on the charging case repeatedly flashes slowly twice in a row and the headset goes into
pairing mode.
You can remove the headset from the charging case after entering pairing mode. When you put the headset
units into both ears, you will hear a notification sound and the voice guidance say “Pairing”, from both headset
units at the same time.
4.
Unlock the screen of the iPhone if it is locked.
2
Find the headset on the iPhone.
3
Select [Settings].
1.
Touch [Bluetooth].
2.
44
About the instruction manual video
Watch the video to find out how to perform the pairing for the first time.
https://rd1.sony.net/help/mdr/mov0034/h_zz/
Hint
The operation above is an example. For more details, refer to the operating instructions supplied with your iPhone.
To delete all Bluetooth pairing information, see “Initializing the headset to restore factory settings”.
Note
If pairing is not established within 5 minutes, pairing mode is canceled. In this case, set the headset into the charging case, and
start the operation again from step
.
Once Bluetooth devices are paired, there is no need to pair them again, except in the following cases:
Pairing information has been deleted after repair, etc.
When a 9th device is paired.
The headset can be paired with up to 8 devices. If a new device is paired after 8 devices are already paired, the registration
information of the paired device with the oldest connection date is overwritten with the information for the new device.
Touch the switch to turn on the Bluetooth function.
3.
Touch [LinkBuds].
If Passkey (*) input is required, input “0000”.
The headset and iPhone are paired and connected with each other.
When the headset is placed in the charging case, the indicator (blue) on the charging case flashes slowly for about
5 seconds.
When you are wearing the headset, you will hear a notification sound from both headset units at the same time.
If they are not connected, see “Connecting to a paired iPhone
”.
If [LinkBuds] does not appear on the display of the iPhone, try again from the beginning of step
.
4
A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.
*
45
When the pairing information for the headset has been deleted from the Bluetooth device.
When the headset is initialized.
All of the pairing information is deleted. In this case, delete the pairing information for the headset from the connected device
and then pair them again.
The headset can be paired with multiple devices, but can only play music from 1 paired device at a time.
Related Topic
Wearing the headset
How to make a wireless connection to Bluetooth devices
Connecting to a paired iPhone
Listening to music from a device via Bluetooth connection
Disconnecting Bluetooth connection (after use)
Initializing the headset to restore factory settings
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Copyright 2022 Sony Corporation
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Help Guide
Wireless Stereo Headset
LinkBuds
Connecting to a paired iPhone
Unlock the screen of the iPhone if it is locked.
1
Remove the headset from the charging case.
The headset turns on automatically.
2
Put the headset units into both ears.
When the headset has automatically connected to the last connected device, you will hear a notification sound from
both headset units (or from the headset unit you are wearing) at the same time.
Check the connection status on the iPhone. If it is not connected, proceed to step
.
3
Display the devices paired with the iPhone.
4
Select [Settings].
1.
Touch [Bluetooth].
2.
Touch the switch to turn on the Bluetooth function.
3.
Touch [LinkBuds].
5
47
Hint
The operation above is an example. For more details, refer to the operating instructions supplied with your iPhone.
Note
When connecting, [LinkBuds], [LE_LinkBuds], or both may be displayed on the connecting device. When both or [LinkBuds] is
displayed, select [LinkBuds]; when [LE_LinkBuds] is displayed, select [LE_LinkBuds].
If the last-connected Bluetooth device is placed near the headset, the headset may connect automatically to the device by simply
turning on the headset. If this is the case, deactivate the Bluetooth function on the last-connected device or turn off the power.
If you cannot connect your iPhone to the headset, delete the headset pairing information on your iPhone and perform the pairing
again. As for the operations on your iPhone, refer to the operating instructions supplied with the iPhone.
Related Topic
Wearing the headset
Using only one unit of the headset
How to make a wireless connection to Bluetooth devices
Pairing and connecting with an iPhone
Listening to music from a device via Bluetooth connection
Disconnecting Bluetooth connection (after use)
5-031-118-11(2)
Copyright 2022 Sony Corporation
You will hear a notification sound from both headset units (or from the headset unit you are wearing) at the same
time.
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Help Guide
Wireless Stereo Headset
LinkBuds
Pairing and connecting with a computer (Windows® 10)
The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the
headset for the first time.
Before starting the operation, make sure of the following:
Your computer has a Bluetooth function that supports music playback connections (A2DP).
The computer is placed within 1 m (3 feet) of the headset.
The headset is charged sufficiently.
The operating instructions of the computer is in hand.
Depending on the computer you are using, the built-in Bluetooth adaptor may need to be turned on. If you do not
know how to turn on the Bluetooth adaptor or are unsure if your computer has a built-in Bluetooth adaptor, refer to
the operating instructions supplied with the computer.
If your OS version is Windows 10 version 1803 or later, the Swift Pair function will make pairing easier. To use the
Swift Pair function, click the [Start] button - [Settings] - [Devices] - [Bluetooth & other devices], and check [Show
notifications to connect using Swift Pair].
Enter pairing mode on this headset.
When you pair the headset with a device for the first time after purchase or after initializing the
headset (if the headset has no pairing information)
1
Remove both units of the headset from the charging case.
The headset goes into pairing mode automatically when it is removed from the charging case.
When you put the headset units into both ears, you will hear a notification sound and the voice guidance say
“Pairing”, from both headset units at the same time.
1.
49
When you pair a second or subsequent device (the headset has pairing information for other
devices)
Set the headset into the charging case.
Put the left unit of the headset (the unit with the tactile dot) back into the left hole of the charging case, put the
right unit of the headset back into the right hole of the charging case, insert the units until they click, and then
make sure that the units are locked in the charging case.
1.
Close the lid of the charging case.
By closing the lid once, the headset units are straightened and locked in place, even if they were not locked in
the charging case before.
2.
Hold the charging case in your hand and press the lid open button to open the lid.
3.
Press and hold the pairing button of the charging case for about 5 seconds.4.
50
The indicator (blue) on the charging case repeatedly flashes slowly twice in a row and the headset goes into
pairing mode.
You can remove the headset from the charging case after entering pairing mode. When you put the headset
units into both ears, you will hear a notification sound and the voice guidance say “Pairing” from both headset
units at the same time.
Wake the computer up if the computer is in standby (sleep) or hibernation mode.
2
Pair the headset using the computer.
To connect using the Swift Pair function
To connect without using the Swift Pair function
3
Select [Connect] from the pop up menu displayed on your computer screen.1.
Click the [Start] button, then [Settings].1.
Click [Devices].2.
51
Click the [Bluetooth & other devices] tab, click the [Bluetooth] switch to turn on the Bluetooth function, then click
[Add Bluetooth or other device].
3.
Click [Bluetooth].
4.
Click [LinkBuds].5.
52
Hint
The operation above is an example. For more details, refer to the operating instructions supplied with the computer.
To delete all Bluetooth pairing information, see “Initializing the headset to restore factory settings”.
Note
If pairing is not established within 5 minutes, pairing mode is canceled. In this case, set the headset into the charging case, and
start the operation again from step
.
Once Bluetooth devices are paired, there is no need to pair them again, except in the following cases:
Pairing information has been deleted after repair, etc.
When a 9th device is paired.
The headset can be paired with up to 8 devices. If a new device is paired after 8 devices are already paired, the registration
information of the paired device with the oldest connection date is overwritten with the information for the new device.
When the pairing information for the headset has been deleted from the Bluetooth device.
When the headset is initialized.
All of the pairing information is deleted. In this case, delete the pairing information for the headset from the connected device
and then pair them again.
The headset can be paired with multiple devices, but can only play music from 1 paired device at a time.
Related Topic
If Passkey (*) input is required, input “0000”.
The headset and computer are paired and connected with each other.
When the headset is placed in the charging case, the indicator (blue) on the charging case flashes slowly for about
5 seconds.
When you are wearing the headset, you will hear a notification sound from both headset units at the same time.
If they are not connected, see “Connecting to a paired computer (Windows 10)”.
If [LinkBuds] does not appear on the computer screen, try again from “To connect without using the Swift Pair
function” of step
.
A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.
*
53
Wearing the headset
How to make a wireless connection to Bluetooth devices
Connecting to a paired computer (Windows 10)
Listening to music from a device via Bluetooth connection
Disconnecting Bluetooth connection (after use)
Initializing the headset to restore factory settings
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Copyright 2022 Sony Corporation
54
Help Guide
Wireless Stereo Headset
LinkBuds
Pairing and connecting with a computer (Windows 8.1)
The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the
headset for the first time.
Before starting the operation, make sure of the following:
Your computer has a Bluetooth function that supports music playback connections (A2DP).
The computer is placed within 1 m (3 feet) of the headset.
The headset is charged sufficiently.
The operating instructions of the computer is in hand.
Depending on the computer you are using, the built-in Bluetooth adaptor may need to be turned on. If you do not
know how to turn on the Bluetooth adaptor or are unsure if your computer has a built-in Bluetooth adaptor, refer to
the operating instructions supplied with the computer.
Enter pairing mode on this headset.
When you pair the headset with a device for the first time after purchase or after initializing the
headset (if the headset has no pairing information)
When you pair a second or subsequent device (the headset has pairing information for other
devices)
1
Remove both units of the headset from the charging case.
The headset goes into pairing mode automatically when it is removed from the charging case.
When you put the headset units into both ears, you will hear a notification sound and the voice guidance say
“Pairing”, from both headset units at the same time.
1.
Set the headset into the charging case.
Put the left unit of the headset (the unit with the tactile dot) back into the left hole of the charging case, put the
right unit of the headset back into the right hole of the charging case, insert the units until they click, and then
make sure that the units are locked in the charging case.
1.
55
Close the lid of the charging case.
By closing the lid once, the headset units are straightened and locked in place, even if they were not locked in
the charging case before.
2.
Hold the charging case in your hand and press the lid open button to open the lid.
3.
Press and hold the pairing button of the charging case for about 5 seconds.
The indicator (blue) on the charging case repeatedly flashes slowly twice in a row and the headset goes into
pairing mode.
You can remove the headset from the charging case after entering pairing mode. When you put the headset
units into both ears, you will hear a notification sound and the voice guidance say “Pairing”, from both headset
4.
56
units at the same time.
Wake the computer up if the computer is in standby (sleep) or hibernation mode.
2
Pair the headset using the computer.
3
Move the mouse pointer to the top-right corner of the screen (when using a touch panel, swipe from the right
edge of the screen), then select [Settings] from the Charm Bar.
1.
Select [Change PC Settings] of the [Settings] charm.
2.
Select [PC and devices] of the [PC Settings] screen.
3.
Select [Bluetooth].
4.
57
Hint
The operation above is an example. For more details, refer to the operating instructions supplied with the computer.
To delete all Bluetooth pairing information, see “Initializing the headset to restore factory settings”.
Note
If pairing is not established within 5 minutes, pairing mode is canceled. In this case, set the headset into the charging case, and
start the operation again from step
.
Once Bluetooth devices are paired, there is no need to pair them again, except in the following cases:
Pairing information has been deleted after repair, etc.
When a 9th device is paired.
The headset can be paired with up to 8 devices. If a new device is paired after 8 devices are already paired, the registration
information of the paired device with the oldest connection date is overwritten with the information for the new device.
When the pairing information for the headset has been deleted from the Bluetooth device.
When the headset is initialized.
All of the pairing information is deleted. In this case, delete the pairing information for the headset from the connected device
If Passkey (*) input is required, input “0000”.
The headset and computer are paired and connected with each other.
When the headset is placed in the charging case, the indicator (blue) on the charging case flashes slowly for about
5 seconds.
When you are wearing the headset, you will hear a notification sound from both headset units at the same time.
If they are not connected, see “Connecting to a paired computer (Windows 8.1)”.
If [LinkBuds] does not appear on the computer screen, try again from the beginning of step
.
Select [LinkBuds], then select [Pair].
5.
A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.
*
58
and then pair them again.
The headset can be paired with multiple devices, but can only play music from 1 paired device at a time.
Related Topic
Wearing the headset
How to make a wireless connection to Bluetooth devices
Connecting to a paired computer (Windows 8.1)
Listening to music from a device via Bluetooth connection
Disconnecting Bluetooth connection (after use)
Initializing the headset to restore factory settings
5-031-118-11(2)
Copyright 2022 Sony Corporation
59
Help Guide
Wireless Stereo Headset
LinkBuds
Pairing and connecting with a computer (Mac)
The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the
headset for the first time.
Compatible OS
macOS (version 10.15 or later)
Before starting the operation, make sure of the following:
Your computer has a Bluetooth function that supports music playback connections (A2DP).
The computer is placed within 1 m (3 feet) of the headset.
The headset is charged sufficiently.
The operating instructions of the computer is in hand.
Depending on the computer you are using, the built-in Bluetooth adaptor may need to be turned on. If you do not
know how to turn on the Bluetooth adaptor or are unsure if your computer has a built-in Bluetooth adaptor, refer to
the operating instructions supplied with the computer.
Set the computer speaker to the ON mode.
If the computer speaker is set to the “OFF” mode, no sound is heard from the headset.
Computer speaker in the ON mode
Enter pairing mode on this headset.
When you pair the headset with a device for the first time after purchase or after initializing the
headset (if the headset has no pairing information)
When you pair a second or subsequent device (the headset has pairing information for other
devices)
1
Remove both units of the headset from the charging case.
The headset goes into pairing mode automatically when it is removed from the charging case.
When you put the headset units into both ears, you will hear a notification sound and the voice guidance say
“Pairing”, from both headset units at the same time.
1.
Set the headset into the charging case.1.
60
Put the left unit of the headset (the unit with the tactile dot) back into the left hole of the charging case, put the
right unit of the headset back into the right hole of the charging case, insert the units until they click, and then
make sure that the units are locked in the charging case.
Close the lid of the charging case.
By closing the lid once, the headset units are straightened and locked in place, even if they were not locked in
the charging case before.
2.
Hold the charging case in your hand and press the lid open button to open the lid.
3.
Press and hold the pairing button of the charging case for about 5 seconds.
4.
61
Hint
The operation above is an example. For more details, refer to the operating instructions supplied with the computer.
To delete all Bluetooth pairing information, see “Initializing the headset to restore factory settings”.
The indicator (blue) on the charging case repeatedly flashes slowly twice in a row and the headset goes into
pairing mode.
You can remove the headset from the charging case after entering pairing mode. When you put the headset
units into both ears, you will hear a notification sound and the voice guidance say “Pairing”, from both headset
units at the same time.
Wake the computer up if the computer is in standby (sleep) or hibernation mode.
2
Pair the headset using the computer.
If Passkey (*) input is required, input “0000”.
The headset and computer are paired and connected with each other.
When the headset is placed in the charging case, the indicator (blue) on the charging case flashes slowly for about
5 seconds.
When you are wearing the headset, you will hear a notification sound from both headset units at the same time.
If they are not connected, see “Connecting to a paired computer (Mac)”.
If [LinkBuds] does not appear on the computer screen, try again from the beginning of step
.
3
Select [
(System Preferences)] - [Bluetooth] from the Dock at the bottom of the screen.
1.
Select [LinkBuds] of the [Bluetooth] screen and click [Connect].
2.
A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.
*
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Note
If pairing is not established within 5 minutes, pairing mode is canceled. In this case, set the headset into the charging case, and
start the operation again from step .
Once Bluetooth devices are paired, there is no need to pair them again, except in the following cases:
Pairing information has been deleted after repair, etc.
When a 9th device is paired.
The headset can be paired with up to 8 devices. If a new device is paired after 8 devices are already paired, the registration
information of the paired device with the oldest connection date is overwritten with the information for the new device.
When the pairing information for the headset has been deleted from the Bluetooth device.
When the headset is initialized.
All of the pairing information is deleted. In this case, delete the pairing information for the headset from the connected device
and then pair them again.
The headset can be paired with multiple devices, but can only play music from 1 paired device at a time.
Related Topic
Wearing the headset
How to make a wireless connection to Bluetooth devices
Connecting to a paired computer (Mac)
Listening to music from a device via Bluetooth connection
Disconnecting Bluetooth connection (after use)
Initializing the headset to restore factory settings
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Help Guide
Wireless Stereo Headset
LinkBuds
Connecting to a paired computer (Windows 10)
Before starting the operation, make sure of the following:
Depending on the computer you are using, the built-in Bluetooth adaptor may need to be turned on. If you do not
know how to turn on the Bluetooth adaptor or are unsure if your computer has a built-in Bluetooth adaptor, refer to
the operating instructions supplied with the computer.
Wake the computer up if the computer is in standby (sleep) or hibernation mode.
1
Remove the headset from the charging case.
The headset turns on automatically.
2
Put the headset units into both ears.
When the headset has automatically connected to the last connected device, you will hear a notification sound from
both headset units (or from the headset unit you are wearing) at the same time.
Check the connection status on the computer. If it is not connected, proceed to step
.
3
Select the headset using the computer.
4
Right-click the speaker icon on the toolbar, then select [Open Sound settings].
1.
From the [Choose your output device] drop-down menu, select [Headphones (LinkBuds Stereo)].
2.
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If [Headphones (LinkBuds Stereo)] is not displayed on the drop-down menu, click [Sound Control Panel] and
then right-click on the [Playback] tab of the [Sound] screen to check [Show Disconnected Devices].
Select [Connect] from the displayed menu.
3.
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Hint
The connection is established. You will hear a notification sound from both headset units (or from the headset
unit you are wearing) at the same time.
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The operation above is an example. For more details, refer to the operating instructions supplied with the computer.
Note
If the music playback sound quality is poor, check that the A2DP function which supports music playback connections is enabled
in the computer settings. For more details, refer to the operating instructions supplied with the computer.
If the last-connected Bluetooth device is placed near the headset, the headset may connect automatically to the device by simply
turning on the headset. If this is the case, deactivate the Bluetooth function on the last-connected device or turn off the power.
If you cannot connect your computer to the headset, delete the headset pairing information on your computer and perform the
pairing again. As for the operations on your computer, refer to the operating instructions supplied with the computer.
Related Topic
Wearing the headset
Using only one unit of the headset
How to make a wireless connection to Bluetooth devices
Pairing and connecting with a computer (Windows® 10)
Listening to music from a device via Bluetooth connection
Disconnecting Bluetooth connection (after use)
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Help Guide
Wireless Stereo Headset
LinkBuds
Connecting to a paired computer (Windows 8.1)
Before starting the operation, make sure of the following:
Depending on the computer you are using, the built-in Bluetooth adaptor may need to be turned on. If you do not
know how to turn on the Bluetooth adaptor or are unsure if your computer has a built-in Bluetooth adaptor, refer to
the operating instructions supplied with the computer.
Wake the computer up if the computer is in standby (sleep) or hibernation mode.
1
Remove the headset from the charging case.
The headset turns on automatically.
2
Put the headset units into both ears.
When the headset has automatically connected to the last connected device, you will hear a notification sound from
both headset units (or from the headset unit you are wearing) at the same time.
Check the connection status on the computer. If it is not connected, proceed to step
.
3
Select the headset using the computer.
4
Select [Desktop] on the Start screen.
1.
Right-click the [Start] button, then select [Control Panel] from the pop-up menu.
2.
Select [Hardware and Sound] - [Sound].
3.
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Right-click [LinkBuds].
If [LinkBuds] is not displayed on the [Sound] screen, right-click on the [Sound] screen, then check [Show
Disconnected Devices].
4.
Select [Connect] from the displayed menu.
The connection is established. You will hear a notification sound from both headset units (or from the headset
unit you are wearing) at the same time.
5.
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Hint
The operation above is an example. For more details, refer to the operating instructions supplied with the computer.
Note
If the music playback sound quality is poor, check that the A2DP function which supports music playback connections is enabled
in the computer settings. For more details, refer to the operating instructions supplied with the computer.
If the last-connected Bluetooth device is placed near the headset, the headset may connect automatically to the device by simply
turning on the headset. If this is the case, deactivate the Bluetooth function on the last-connected device or turn off the power.
If you cannot connect your computer to the headset, delete the headset pairing information on your computer and perform the
pairing again. As for the operations on your computer, refer to the operating instructions supplied with the computer.
Related Topic
Wearing the headset
Using only one unit of the headset
How to make a wireless connection to Bluetooth devices
Pairing and connecting with a computer (Windows 8.1)
Listening to music from a device via Bluetooth connection
Disconnecting Bluetooth connection (after use)
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Help Guide
Wireless Stereo Headset
LinkBuds
Connecting to a paired computer (Mac)
Compatible OS
macOS (version 10.15 or later)
Before starting the operation, make sure of the following:
Depending on the computer you are using, the built-in Bluetooth adaptor may need to be turned on. If you do not
know how to turn on the Bluetooth adaptor or are unsure if your computer has a built-in Bluetooth adaptor, refer to
the operating instructions supplied with the computer.
Set the computer speaker to the ON mode.
If the computer speaker is set to the “OFF” mode, no sound is heard from the headset.
Computer speaker in the ON mode
Wake the computer up if the computer is in standby (sleep) or hibernation mode.
1
Remove the headset from the charging case.
The headset turns on automatically.
2
Put the headset units into both ears.
When the headset has automatically connected to the last connected device, you will hear a notification sound from
both headset units (or from the headset unit you are wearing) at the same time.
Check the connection status on the computer. If it is not connected, proceed to step
.
3
Select the headset using the computer.
4
Select [ (System Preferences)] - [Bluetooth] from the Dock at the bottom of the screen.
1.
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Hint
The operation above is an example. For more details, refer to the operating instructions supplied with the computer.
Note
If the music playback sound quality is poor, check that the A2DP function which supports music playback connections is enabled
in the computer settings. For more details, refer to the operating instructions supplied with the computer.
If the last-connected Bluetooth device is placed near the headset, the headset may connect automatically to the device by simply
turning on the headset. If this is the case, deactivate the Bluetooth function on the last-connected device or turn off the power.
If you cannot connect your computer to the headset, delete the headset pairing information on your computer and perform the
pairing again. As for the operations on your computer, refer to the operating instructions supplied with the computer.
Related Topic
Wearing the headset
Using only one unit of the headset
How to make a wireless connection to Bluetooth devices
Pairing and connecting with a computer (Mac)
Listening to music from a device via Bluetooth connection
Click [LinkBuds] on the [Bluetooth] screen while pressing the computer Control button and select [Connect]
from the pop up menu.
The connection is established. You will hear a notification sound from both headset units (or from the headset
unit you are wearing) at the same time.
2.
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Help Guide
Wireless Stereo Headset
LinkBuds
Pairing and connecting with a Bluetooth device
The operation to register the device that you wish to connect to is called “pairing”. First, pair a device to use it with the
headset for the first time.
Before starting the operation, make sure of the following:
The Bluetooth device is placed within 1 m (3 feet) of the headset.
The headset is charged sufficiently.
The operating instructions of the Bluetooth device is in hand.
Enter pairing mode on this headset.
When you pair the headset with a device for the first time after purchase or after initializing the
headset (if the headset has no pairing information)
When you pair a second or subsequent device (the headset has pairing information for other
devices)
1
Remove both units of the headset from the charging case.
The headset goes into pairing mode automatically when it is removed from the charging case.
When you put the headset units into both ears, you will hear a notification sound and the voice guidance say
“Pairing”, from both headset units at the same time.
1.
Set the headset into the charging case.
Put the left unit of the headset (the unit with the tactile dot) back into the left hole of the charging case, put the
right unit of the headset back into the right hole of the charging case, insert the units until they click, and then
make sure that the units are locked in the charging case.
1.
Close the lid of the charging case.2.
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By closing the lid once, the headset units are straightened and locked in place, even if they were not locked in
the charging case before.
Hold the charging case in your hand and press the lid open button to open the lid.3.
Press and hold the pairing button of the charging case for about 5 seconds.
The indicator (blue) on the charging case repeatedly flashes slowly twice in a row and the headset goes into
pairing mode.
You can remove the headset from the charging case after entering pairing mode. When you put the headset
units into both ears, you will hear a notification sound and the voice guidance say “Pairing”, from both headset
units at the same time.
4.
Perform the pairing procedure on the Bluetooth device to search for this headset.
[LinkBuds] will be displayed on the list of detected devices on the screen of the Bluetooth device.
If it is not displayed, repeat from step
.
2
Select [LinkBuds] displayed on the screen of the Bluetooth device for pairing.
If Passkey (*) input is required, input “0000”.
3
A Passkey may be called “Passcode”, “PIN code”, “PIN number”, or “Password”.
*
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Hint
The operation above is an example. For more details, refer to the operating instructions supplied with the Bluetooth device.
To delete all Bluetooth pairing information, see “Initializing the headset to restore factory settings”.
Note
If pairing is not established within 5 minutes, pairing mode is canceled. In this case, set the headset into the charging case, and
start the operation again from step
.
Once Bluetooth devices are paired, there is no need to pair them again, except in the following cases:
Pairing information has been deleted after repair, etc.
When a 9th device is paired.
The headset can be paired with up to 8 devices. If a new device is paired after 8 devices are already paired, the registration
information of the paired device with the oldest connection date is overwritten with the information for the new device.
When the pairing information for the headset has been deleted from the Bluetooth device.
When the headset is initialized.
All of the pairing information is deleted. In this case, delete the pairing information for the headset from the connected device
and then pair them again.
The headset can be paired with multiple devices, but can only play music from 1 paired device at a time.
Related Topic
Wearing the headset
How to make a wireless connection to Bluetooth devices
Connecting to a paired Bluetooth device
Listening to music from a device via Bluetooth connection
Disconnecting Bluetooth connection (after use)
Initializing the headset to restore factory settings
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Make the Bluetooth connection from the Bluetooth device.
Some devices automatically connect with the headset when the pairing is complete.
When the headset is placed in the charging case, the indicator (blue) on the charging case flashes slowly for about
5 seconds.
When you are wearing the headset, you will hear a notification sound from both headset units at the same time.
If they are not connected, see “Connecting to a paired Bluetooth device”.
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Help Guide
Wireless Stereo Headset
LinkBuds
Connecting to a paired Bluetooth device
Hint
The operation above is an example. For more details, refer to the operating instructions supplied with the Bluetooth device.
Note
When connecting, [LinkBuds], [LE_LinkBuds], or both may be displayed on the connecting device. When both or [LinkBuds] is
displayed, select [LinkBuds]; when [LE_LinkBuds] is displayed, select [LE_LinkBuds].
If the last-connected Bluetooth device is placed near the headset, the headset may connect automatically to the device by simply
turning on the headset. If this is the case, deactivate the Bluetooth function on the last-connected device or turn off the power.
If you cannot connect your Bluetooth device to the headset, delete the headset pairing information on your Bluetooth device and
perform the pairing again. As for the operations on your Bluetooth device, refer to the operating instructions supplied with the
Bluetooth device.
Related Topic
Wearing the headset
Using only one unit of the headset
Remove the headset from the charging case.
The headset turns on automatically.
1
Put the headset units into both ears.
When the headset has automatically connected to the last connected device, you will hear a notification sound from
both headset units (or from the headset unit you are wearing) at the same time.
Check the connection status on the Bluetooth device. If it is not connected, proceed to step
.
2
Make the Bluetooth connection from the Bluetooth device.
As for the operations on your Bluetooth device, refer to the operating instructions supplied with the Bluetooth
device.
You will hear a notification sound from both headset units (or from the headset unit you are wearing) at the same
time.
3
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Help Guide
Wireless Stereo Headset
LinkBuds
Listening to music from a device via Bluetooth connection
If your Bluetooth device supports the following profiles, you can enjoy listening to music and control the device from your
headset via Bluetooth connection.
A2DP (Advanced Audio Distribution Profile)
You can enjoy high-quality music wirelessly.
AVRCP (Audio Video Remote Control Profile)
You can adjust the volume, etc.
The operation may vary depending on the Bluetooth device. Refer to the operating instructions supplied with the
Bluetooth device.
Put the headset units into both ears.
1
Check the (left) and (right) marks on the headset.
Put the headset unit with the (left) mark into your left ear and the headset unit with the (right) mark into
your right ear. There is a tactile dot on the left unit of the headset.
A: Tactile dot
1.
Check the position relation between the ear and the headset when you put the headset unit into your ear.
B: Position to insert the driver unit part
C: Position to support the housing part
D: Position to hook the fitting supporter
b: Driver unit part
c: Housing part (Insert the side with the charging port into your ear)
d: Fitting supporter
2.
Hold the headset with your fingers.3.
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Hint
In the factory settings, when you listen to music while wearing both units of the headset, the headset will pause music playback if
one or both units are removed. When you put the removed headset unit into your ear again, the headset will resume music
playback.
The headset supports SCMS-T content protection. You can enjoy music and other audio on the headset from a device such as a
portable TV that supports SCMS-T content protection.
Depending on the Bluetooth device, it may be necessary to adjust the volume or set the audio output setting on the device.
The headset volume during a call and during music playback can be independently adjusted. Changing the call volume does not
change the volume of music playback and vice versa.
You can also listen to music by removing only one unit from the charging case and putting it into your ear.
When you are listening to music with only one unit, if you put the other unit into the other ear, you can listen to music with both
units.
Insert the driver unit part (b) into your ear (B).4.
Rotate in the direction of the arrow so that the housing part (c) is at the position of the ear (C).
5.
Push the fitting supporter (d) into the ear grooves (D).6.
Check if the headset is worn properly.
Touch the fitting supporter (d) with your finger and check that it is in the ear grooves (D).
Shake your head lightly and make sure that the headset is not out of position.
7.
Connect the headset to a Bluetooth device.
2
Operate the Bluetooth device to start playback and adjust the volume to a moderate level.
3
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Note
In the factory settings, you cannot adjust the volume on the headset. Adjust the volume on the connected device. If you are
unable to adjust the volume on the connected device, install the “Sony | Headphones Connect” smartphone app and adjust the
volume in the app.
If the communication condition is poor, the Bluetooth device may react incorrectly to the operation on the headset.
Related Topic
Wearing the headset
Using only one unit of the headset
How to make a wireless connection to Bluetooth devices
Controlling the audio device (Bluetooth connection)
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Help Guide
Wireless Stereo Headset
LinkBuds
Controlling the audio device (Bluetooth connection)
If your Bluetooth device supports the device operating function (compatible protocol: AVRCP), then the following
operations are available. The available functions may vary depending on the Bluetooth device, so refer to the operating
instructions supplied with the device.
You can use either the left or right unit to perform the following operations.
Play/Pause: Tap the headset or in the area near your ear twice quickly (with an interval of about 0.2 seconds).
Skip to the beginning of the next track: Tap the headset or in the area near your ear 3 times quickly (with an interval
of about 0.2 seconds).
Note
In the factory settings, you cannot adjust the volume on the headset. Adjust the volume on the connected device. If you are
unable to adjust the volume on the connected device, install the “Sony | Headphones Connect” smartphone app and adjust the
volume in the app.
If the communication condition is poor, the Bluetooth device may react incorrectly to the operation on the headset.
The available operations may vary depending on the connected device, the music software, or app used. In some cases, it may
operate differently or may not work even when the operations described above are performed.
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Help Guide
Wireless Stereo Headset
LinkBuds
Disconnecting Bluetooth connection (after use)
Hint
When you finish playing music, the Bluetooth connection may terminate automatically depending on the Bluetooth device.
Related Topic
Turning off the headset
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Disconnect the Bluetooth connection by operating the Bluetooth device.
When you are wearing the headset, you will hear a notification sound from both headset units (or from the headset
unit you are wearing) at the same time.
1
Set the headset into the charging case.
The headset turns off.
2
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Help Guide
Wireless Stereo Headset
LinkBuds
About 360 Reality Audio
What is 360 Reality Audio?
360 Reality Audio is a new music experience using Sony’s 360 three-dimensional audio technology.
Positional information is attached to each sound source such as vocals, chorus, and musical instruments, and are placed
in a spherical space.
Listeners can experience a three-dimensional sound field as if they are immersed in a live performance of the artists.
Conditions of use
Download and use a music streaming service (charged) app that supports 360 Reality Audio on your smartphone or
tablet equipped with iOS or Android.
By optimizing the sound field and the acoustic feature of headset with the “Sony | Headphones Connect” app, you can
enjoy a more realistic sense of reality.
For details on 360 Reality Audio, refer to the following website:
https://www.sony.net/360RA/
Note
Service is not available in certain countries and regions.
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Help Guide
Wireless Stereo Headset
LinkBuds
Speaking with someone while wearing the headset (Speak-to-Chat)
If Speak-to-Chat is enabled in advance, the Speak-to-Chat mode starts automatically when you talk to someone.
The headset pauses or mutes the music which is being played.
When the headset does not detect the wearer’s voice for a certain period of time, the Speak-to-Chat mode ends
automatically.
If you want to end the mode before that, tap the left or right unit of the headset or in the area near your ear 2 or 3 times
quickly (with an interval of about 0.2 seconds).
To enable Speak-to-Chat
To activate the Speak-to-Chat mode, Speak-to-Chat must be enabled in advance.
In the factory settings, Speak-to-Chat is disabled. To enable, change the setting with the “Sony | Headphones Connect”
app.
To disable Speak-to-Chat
To disable, change the setting with the “Sony | Headphones Connect” app.
About the instruction manual video
Watch the video to find out how to use Speak-to-Chat.
https://rd1.sony.net/help/mdr/mov0035/h_zz/
Hint
The Speak-to-Chat mode also ends in the following instance.
When both units of the headset are removed while the wearing detection automatic power off function is enabled
When you use the “Sony | Headphones Connect” app, you can change the sensitivity of the automatic audio detection and
change the time until the Speak-to-Chat mode ends, in addition to the mode to switch between enabling and disabling. In the
factory settings, the time until the mode ends is set to about 15 seconds.
Note
The Speak-to-Chat mode activates when the headset detects the speech of the person wearing the headset, but in rare cases it
may activate in response to vibrations caused by devices such as electric toothbrushes, electric massagers, and electric shavers,
or by activities such as brushing your teeth, coughing, or humming. In cases where the Speak-to-Chat mode frequently activates
by accident, set Speak-to-Chat to “L Sensitivity”.
Music playback is paused while the Speak-to-Chat mode is active only when connected via Bluetooth connection.
The connected device or playback application you are using may not support the pausing of music or video content playback
when the Speak-to-Chat mode is activated or the resuming of music playback when the Speak-to-Chat mode is deactivated.
85
When Service Link is turned on and only the left unit is worn in your ear, the Speak-to-Chat mode will not be activated even if the
headset detects the wearer’s voice.
If the sound volume is loud, the headset is not worn properly, or the volume of the spoken voice is low, the speech of the person
wearing the headset may not be detected, and the Speak-to-Chat mode may not activate.
If this is the case, speech detection may be improved by speaking more slowly or in a louder voice, making sure the headset is in
the correct position, turning down any music playing, or setting Speak-to-Chat to “H Sensitivity”.
Related Topic
What you can do with the “Sony | Headphones Connect” app
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Wireless Stereo Headset
LinkBuds
About the sound quality mode
The following 2 sound quality modes during Bluetooth playback can be selected. You can switch the settings and check
the sound quality mode with the “Sony | Headphones Connect” app.
Priority on sound quality: Prioritizes the sound quality.
Priority on stable connection: Prioritizes the stable connection (default).
When you want to prioritize the sound quality, select “Priority on sound quality”.
If the connection is unstable, such as when producing only intermittent sound, select “Priority on stable connection”.
Note
The playback time may shorten depending on the sound quality and the conditions under which you are using the headset.
Depending on the ambient conditions in the area where you are using the headset, intermittent sound may still occur even if
“Priority on stable connection” is selected.
Related Topic
What you can do with the “Sony | Headphones Connect” app
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Wireless Stereo Headset
LinkBuds
Supported codecs
A codec is an “audio coding algorithm” used when transmitting sound wirelessly via Bluetooth connection.
The headset supports the following 2 codecs for music playback via an A2DP connection: SBC and AAC.
SBC
This is an abbreviation for Subband Codec.
SBC is the standard audio coding technology used in Bluetooth devices.
All Bluetooth devices support SBC.
AAC
This is an abbreviation for Advanced Audio Coding.
AAC is mainly used in Apple products such as iPhone that can provide a higher sound quality than that of SBC.
When music in one of the above codecs is transmitted from a connected device, the headset switches to that codec
automatically and plays back the music in the same codec.
If the connected device supports a codec of higher sound quality than SBC, you may need to set the device beforehand
to enjoy music with the desired codec from the supported codecs.
Refer to the operating instructions supplied with the device regarding setting the codec.
Related Topic
About the sound quality mode
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Wireless Stereo Headset
LinkBuds
About the DSEE function
The DSEE function complements the high-range sound, which is often lost from compressed sound sources, in the
headset to the equivalent of CD sound quality.
Sound sources compressed by streaming playback, MP3, Bluetooth transmission codec, etc. are played with natural and
expansive sound.
The DSEE function can be set up on the “Sony | Headphones Connect” app, and is only available when connected to the
headset via Bluetooth connection.
Related Topic
What you can do with the “Sony | Headphones Connect” app
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Wireless Stereo Headset
LinkBuds
Receiving a call
You can enjoy a hands-free call with a smartphone or mobile phone that supports the Bluetooth profile HFP (Hands-free
Profile) or HSP (Headset Profile), via Bluetooth connection.
If your smartphone or mobile phone supports both HFP and HSP, set it to HFP.
The operation may vary depending on the smartphone or mobile phone. Refer to the operating instructions supplied
with the smartphone or mobile phone.
Depending on the connected device or the application you are using, the functions may not work properly even if you
try to operate them with the headset.
Ring tone
When you receive an incoming call, a ring tone will be heard from the headset.
You will hear either of following ring tones, depending on your smartphone or mobile phone.
Ring tone set on the headset
Ring tone set on the smartphone or mobile phone
Ring tone only for a Bluetooth connection set on the smartphone or mobile phone
Connect the headset to a smartphone or mobile phone via Bluetooth connection beforehand.
1
When you hear a ring tone, tap the left or right unit of the headset or in the area near your ear twice quickly
(with an interval of about 0.2 seconds) and receive the call.
A voice will be heard from the headset.
When you receive an incoming call while you are listening to music, playback pauses and a ring tone will be heard
from the headset.
You can talk using the microphones on the headset.
A: Microphones (left, right)
If no ring tone is heard via the headset
2
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Hint
When receiving a call by operating smartphones or mobile phones, some smartphones or mobile phones receive a call with the
phone instead of the headset. With an HFP connection, switch the call to the headset by tapping the left or right unit of the
headset or in the area near your ear 3 times quickly (with an interval of about 0.2 seconds) or by using your smartphone or
mobile phone.
The headset volume during a call and during music playback can be independently adjusted. Even if you change the volume
during a call, the volume of music playback does not change.
You can also enjoy hands-free calls even when you are wearing only one unit of the headset. When you receive an incoming call,
answer the call using the unit of the headset you are wearing. If you put the other unit into the other ear while you are talking with
only one unit, you can talk with both units.
Note
Depending on the smartphone or mobile phone, when you receive an incoming call while you are listening to music, playback
may not resume automatically even if you finish the call.
Use a smartphone or mobile phone at least 50 cm (19.69 in.) away from the headset. Noise may result if the smartphone or
mobile phone is too close to the headset.
In the factory settings, you cannot adjust the volume on the headset. Adjust the volume on the connected device. If you are
unable to adjust the volume on the connected device, install the “Sony | Headphones Connect” smartphone app and adjust the
volume in the app.
Related Topic
Using only one unit of the headset
How to make a wireless connection to Bluetooth devices
Making a call
Functions for a phone call
What you can do with the “Sony | Headphones Connect” app
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The headset may not be connected with the smartphone or mobile phone over HFP or HSP. Check the
connection status on the smartphone or mobile phone.
If playback does not pause automatically, operate the headset to pause playback.
Operate the smartphone or mobile phone to adjust the volume.
3
When you finish talking, tap the left or right unit of the headset or in the area near your ear twice quickly
(with an interval of about 0.2 seconds) to end the call.
If you received a call during music playback, music playback resumes automatically after ending the call.
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Making a call
You can enjoy a hands-free call with a smartphone or mobile phone that supports the Bluetooth profile HFP (Hands-free
Profile) or HSP (Headset Profile), via Bluetooth connection.
If your smartphone or mobile phone supports both HFP and HSP, set it to HFP.
The operation may vary depending on the smartphone or mobile phone. Refer to the operating instructions supplied
with the smartphone or mobile phone.
Depending on the connected device or the application you are using, the functions may not work properly even if you
try to operate them with the headset.
Connect the headset to a smartphone/mobile phone via Bluetooth connection.
1
Operate your smartphone or mobile phone to make a call.
When you make a call, the dial tone is heard from the headset.
If you make a call while you are listening to music, playback pauses.
You can talk using the microphones on the headset.
A: Microphones (left, right)
If no dial tone is heard via the headset
Use your smartphone or mobile phone to switch from the call device to the headset, or tap the left or right unit of the
headset or in the area near your ear 3 times quickly (with an interval of about 0.2 seconds).
2
Operate the smartphone or mobile phone to adjust the volume.
3
When you finish talking, tap the left or right unit of the headset or in the area near your ear twice quickly
(with an interval of about 0.2 seconds) to end the call.
If you made a call during music playback, music playback resumes automatically after ending the call.
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Hint
The headset volume during a call and during music playback can be independently adjusted. Even if you change the volume
during a call, the volume of music playback does not change.
You can also enjoy hands-free calls even when you are wearing only one unit of the headset. If you put the other unit into the
other ear while you are talking with only one unit, you can talk with both units.
Note
Use a smartphone or mobile phone at least 50 cm (19.69 in.) away from the headset. Noise may result if the smartphone or
mobile phone is too close to the headset.
In the factory settings, you cannot adjust the volume on the headset. Adjust the volume on the connected device. If you are
unable to adjust the volume on the connected device, install the “Sony | Headphones Connect” smartphone app and adjust the
volume in the app.
Related Topic
Using only one unit of the headset
How to make a wireless connection to Bluetooth devices
Receiving a call
Functions for a phone call
What you can do with the “Sony | Headphones Connect” app
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Functions for a phone call
The functions available during a call may vary depending on the profile supported by your smartphone or mobile phone.
In addition, even if the profile is the same, the available functions may vary depending on the smartphone or mobile
phone.
Depending on the connected device or the application you are using, the functions may not work properly even if you try
to operate them with the headset.
Refer to the operating instructions supplied with the smartphone or mobile phone.
Supported profile: HFP (Hands-free Profile)
You can use either the left or right unit to perform the following operations.
When only one unit of the headset is worn in your ear, operate the headset on the unit that is worn.
Outgoing call
Tap the headset or in the area near your ear twice quickly (with an interval of about 0.2 seconds) to cancel an
outgoing call.
Tap the headset or in the area near your ear 3 times quickly (with an interval of about 0.2 seconds) to switch the call
device back and forth between the headset and the smartphone/mobile phone.
Incoming call
Tap the headset or in the area near your ear twice quickly (with an interval of about 0.2 seconds) to answer a call.
Tap the headset or in the area near your ear 3 times quickly (with an interval of about 0.2 seconds) to reject a call.
During call
Tap the headset or in the area near your ear twice quickly (with an interval of about 0.2 seconds) to finish a call.
Tap the headset or in the area near your ear 3 times quickly (with an interval of about 0.2 seconds) to switch the call
device back and forth between the headset and the smartphone/mobile phone.
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Supported profile: HSP (Headset Profile)
You can use either the left or right unit to perform the following operations.
When only one unit of the headset is worn in your ear, operate the headset on the unit that is worn.
Outgoing call
Tap the headset or in the area near your ear twice quickly (with an interval of about 0.2 seconds) to cancel an
outgoing call.
Incoming call
Tap the headset or in the area near your ear twice quickly (with an interval of about 0.2 seconds) to answer a call.
During call
Tap the headset or in the area near your ear twice quickly (with an interval of about 0.2 seconds) to finish a call.
Related Topic
Using only one unit of the headset
Receiving a call
Making a call
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Making a video call on your computer
When you make a video call on your computer, you can talk wirelessly from your headset.
Hint
When the settings of the video calling application cannot be checked or calling connections [Headset (LinkBuds Hands-Free)]
cannot be selected, select [Headset (LinkBuds Hands-Free)] on the settings of your computer to make connections. See “Pairing
and connecting with a computer (Windows® 10)”, “Pairing and connecting with a computer (Windows 8.1)” or “Pairing and
connecting with a computer (Mac)”.
Note
While Speak-to-Chat is enabled, if the microphone is not set up correctly, the Speak-to-Chat mode is activated when a voice is
detected, and the sound from the headset may be muted.
Depending on the video calling application you are using, microphone settings may not be available. If this is the case, disable
Speak-to-Chat using the “Sony | Headphones Connect” app.
Depending on the computer or application you are using, the headset may not work properly during a video call. This may be
improved by restarting the computer.
Related Topic
How to make a wireless connection to Bluetooth devices
Pairing and connecting with a computer (Windows® 10)
Pairing and connecting with a computer (Windows 8.1)
Connect the headset to your computer via Bluetooth connection.
1
Launch the video calling application on your computer.
2
Check the settings (*) of the video calling application.
When you make a video call on your computer, select calling connections (HFP/HSP) and not music playback
connections (A2DP). If you select music playback connections, a video call may not be available.
On the speaker settings, select calling connections [Headset (LinkBuds Hands-Free)] (**). ([Headphones
(LinkBuds Stereo)] (**) is for music playback connections.)
On the microphone settings, select calling connections [Headset (LinkBuds Hands-Free)] (**). When the
microphone is not set up, the Speak-to-Chat mode activates when the headset detects the speech of the
person wearing the headset, and the sound from the headset is muted.
Depending on the video calling application you are using, calling connections [Headset (LinkBuds Hands-Free)]
(**) or music playback connections [Headphones (LinkBuds Stereo)] (**) may not be selectable on the speaker
or microphone settings, and only [LinkBuds] may be displayed. If this is the case, select [LinkBuds].
As for frequently asked questions and answers, refer to the customer support website.
3
Depending on the video calling application you are using, this function may not be available.
*
Names may vary according to the computer or the video calling application you are using.
**
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Pairing and connecting with a computer (Mac)
Connecting to a paired computer (Windows 10)
Connecting to a paired computer (Windows 8.1)
Connecting to a paired computer (Mac)
Disconnecting Bluetooth connection (after use)
Speaking with someone while wearing the headset (Speak-to-Chat)
Customer support websites
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Disconnecting Bluetooth connection (after use)
Hint
When you finish playing music, the Bluetooth connection may terminate automatically depending on the Bluetooth device.
Related Topic
Turning off the headset
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Disconnect the Bluetooth connection by operating the Bluetooth device.
When you are wearing the headset, you will hear a notification sound from both headset units (or from the headset
unit you are wearing) at the same time.
1
Set the headset into the charging case.
The headset turns off.
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Using the Google Assistant
By using the Google Assistant feature that comes with the smartphone, you can speak to the headset’s microphones to
operate the smartphone or perform a search.
Compatible smartphones
Smartphones installed with Android 6.0 or later (The latest version of the Google app is required.)
Open the “Sony | Headphones Connect” app and set the function of either the left or right unit of the
headset as the Google Assistant.
For details on the “Sony | Headphones Connect” app, refer to the following URL.
https://rd1.sony.net/help/mdr/hpc/h_zz/
When using the Google Assistant for the first time, open the Google Assistant app and touch [Finish headphones
setup] on the Conversation View, and follow the on-screen instructions to complete initial setup for the Google
Assistant.
Once the initial setup is complete, the right unit of the headset (or the left unit if only the left unit of the headset was
worn for the initial setup) is automatically configured for the Google Assistant.
1
Say “Ok Google” or operate the headset unit to which you assigned the feature to use the Google
Assistant.
A: Microphones (left, right)
Tap the headset or in the area near your ear twice quickly (with an interval of about 0.2 seconds): Inputs a voice
command
Tap the headset or in the area near your ear 3 times quickly (with an interval of about 0.2 seconds): Reads out
the notification
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For details on the Google Assistant, refer to the following website:
https://assistant.google.com
https://g.co/headphones/help
Operating the headset with the Google Assistant
By using specific words with the Google Assistant, you can perform operations on the headset such as checking the
remaining battery charge.
For details, refer to the following website (*):
https://support.google.com/assistant/answer/7172842#headphones
Hint
You can use the Google Assistant feature when you are wearing only one unit to which the Google Assistant feature is assigned
on your ear. When the Google Assistant feature is assigned to the headset and you want to use only one unit of the headset, use
the unit with the Google Assistant feature assigned. Check the setting of the headset with the “Sony | Headphones Connect” app.
Check or update the software version of the headset with the “Sony | Headphones Connect” app.
When the Google Assistant is not available for reasons such as not being connected to the network, the voice guidance “The
Google Assistant is not connected” is heard from both headset units (or from the headset unit you are wearing).
If you do not see [Finish headphones setup] on the Conversation View of the Google Assistant app, delete the pairing information
for the headset from the Bluetooth settings of your smartphone and redo the pairing process.
Note
Once you perform the initial setup for the Google Assistant on your smartphone, which function on the left or right unit of the
headset is set as the Google Assistant depends on the settings for the headset functions and usage conditions. If the Google
Assistant feature is assigned to either unit of the headset and the assignment is switched to the other unit of the headset, the
function of the unit on the side before the change will return to the factory settings (play/pause music, etc.). You can restore the
unit back to its previous functions by changing its settings on the “Sony | Headphones Connect” app.
The Google Assistant feature and the Amazon Alexa feature cannot be assigned to the headset at the same time.
The Google Assistant feature and voice assist function (Google app, Siri) cannot be assigned to the headset at the same time.
If either the left or right unit of the headset is set for the Google Assistant feature and the headset is connected to an iPhone/iPod
touch via Bluetooth connection, the Google Assistant feature cannot be used.
If either the left or right unit of the headset is set for the Google Assistant feature and the headset is connected to an iPhone/iPod
touch via Bluetooth connection, the headset unit with the Google Assistant feature set automatically has its function assignment
cleared when the headset unit without the Google Assistant feature set has its functions changed.
If the left unit of the headset is set to be able to use the Google Assistant, Service Link is automatically turned off.
If Service Link is turned on after the left unit of the headset is set to be able to use the Google Assistant, the function of the left
unit will return to the factory settings (play/pause music, etc.). You can restore the unit back to its previous functions by changing
its settings on the “Sony | Headphones Connect” app.
The Google Assistant is not available during software update of the headset.
When you use the Google Assistant during software update, the voice guidance “The Google assistant is not available during
It is not the case that the headset is compatible with all the specifications described in the web site.
*
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update. Please wait a moment until the update completes.” is heard from both headset units (or from the headset unit you are
wearing).
However, when you use the Google Assistant by saying “Ok Google”, etc., the voice guidance will not be heard.
The Google Assistant may not be available in some countries, regions, or languages.
The function to operate the headset with the Google Assistant depends on the specifications of the Google Assistant.
The specifications of the Google Assistant are subject to change without notice.
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Using Amazon Alexa
By using the Amazon Alexa app installed on your smartphone, you can speak to the headset’s microphones to operate
the smartphone or perform a search.
Compatible smartphones
The OS version which supports the latest version of the Amazon Alexa app on Android or iOS
Installation of the latest Amazon Alexa app is required.
Open the app store on your mobile device.1.
Search for Amazon Alexa app.2.
Select Install.3.
Select Open.4.
Put the headset units into your ears and connect the headset to the smartphone via Bluetooth connection.
1
Open the Amazon Alexa app.
When you use Amazon Alexa for the first time, you will need to login with your Amazon account, and proceed to
step
to set up your headset to the Amazon Alexa app.
If you have set up Amazon Alexa previously, but have configured the left and right units of the headset to a function
other than Amazon Alexa, reconfigure the left or right unit of the headset to Amazon Alexa.
2
Perform the initial setup for Amazon Alexa.
3
Touch the [More] icon in the lower right corner of the Amazon Alexa app screen, and touch [Add a Device].
1.
On the [Which device would you like to set up?] screen, select [Headphones].
2.
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Once the initial setup is complete, the function of the right unit of the headset (or the left unit if only the left unit of
the headset was worn for the initial setup) is changed to Amazon Alexa.
From [AVAILABLE DEVICES] on the [Select your device] screen, select [LinkBuds].
If you cannot find [LinkBuds] in [AVAILABLE DEVICES], the headset is not connected to the smartphone via
Bluetooth connection. Connect the headset to the smartphone via Bluetooth connection.
3.
On the [Set up Alexa on your LinkBuds] screen, touch [CONTINUE].
4.
If the [This will override the current voice assistant on this accessory] screen appears, touch [CONTINUE].
5.
On the [Setup Complete] screen, touch [DONE].
6.
Say the wake word (*) (“Alexa”) or operate the headset unit to which the Amazon Alexa feature is assigned
to use Amazon Alexa.
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For details on Amazon Alexa and its capability, refer to the following website:
https://www.amazon.com/b?node=16067214011
For details on Amazon Alexa, refer to the following website:
https://www.amazon.com/gp/help/customer/display.html?nodeId=G7HPV3YLTGLJEJFK
Hint
You can use the Amazon Alexa feature when you are wearing only one unit to which the Amazon Alexa feature is assigned on
your ear. When the Amazon Alexa feature is assigned to the headset and you want to use only one unit of the headset, use the
unit with the Amazon Alexa feature assigned. Check the setting of the headset with the “Sony | Headphones Connect” app.
Check or update the software version of the headset with the “Sony | Headphones Connect” app.
When Amazon Alexa is not available for reasons such as not being connected to the network, the voice guidance “Either your
mobile device isn’t connected; or you need to open the Alexa App and try again” is heard from both headset units (or from the
headset unit you are wearing).
Note
When you set up the headset on the Amazon Alexa app, which function on the left or right unit of the headset is set as Amazon
Alexa depends on the settings for the headset functions and usage conditions. If the Amazon Alexa feature is assigned to either
unit of the headset and the assignment is switched to the other unit of the headset, the function of the unit on the side before the
change will return to the factory settings (play/pause music, etc.). You can restore the unit back to its previous functions by
changing its settings on the “Sony | Headphones Connect” app.
The Amazon Alexa feature and the Google Assistant feature cannot be assigned to the headset at the same time.
A: Microphones (left, right)
Tap the headset or in the area near your ear twice quickly (with an interval of about 0.2 seconds) to input a
voice command.
Example:
“What is the weather”
“Play music (**)”
If there is no voice, it will be automatically canceled.
To set the wake word, enable [Activate Voice Assistant with your Voice] with the “Sony | Headphones Connect” app.
*
Need Amazon or Prime Music subscription.
**
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The Amazon Alexa feature and voice assist function (Google app, Siri) cannot be assigned to the headset at the same time.
Amazon Alexa is not available in all languages and countries/regions. Alexa features and functionality may vary by location.
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Using the voice assist function (Google app)
By using the Google app feature that comes with the Android smartphone, you can speak to the headset’s microphones
to operate the Android smartphone.
Set the assist and voice input selection to the Google app.
On the Android smartphone, select [Settings] - [Apps & notifications] - [Advanced] - [Default apps] - [Assist & voice
input], and set [Assist app] to the Google app.
The operation above is an example. For details, refer to the operating instructions of the Android smartphone.
Note: The latest version of the Google app may be required.
For details on the Google app, refer to the operating instructions or the support website of the Android smartphone,
or the Google Play store website.
The Google app may not be activated from the headset depending on specifications of the Android smartphone.
1
Put the headset units into your ears and connect the headset to the Android smartphone via Bluetooth
connection.
2
Open the “Sony | Headphones Connect” app and set the function of either the left or right unit of the
headset as the voice assist function.
For details on the “Sony | Headphones Connect” app, refer to the following URL.
https://rd1.sony.net/help/mdr/hpc/h_zz/
3
When the Android smartphone is in standby or playing music, tap the headset to which you assigned the
voice assist function or in the area near your ear twice quickly (with an interval of about 0.2 seconds).
The Google app is activated.
4
Make a request to the Google app through the headset’s microphones.
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Note
The voice assist function (Google app) and the Google Assistant feature cannot be assigned to the headset at the same time.
The voice assist function (Google app) and the Amazon Alexa feature cannot be assigned to the headset at the same time.
The Google app cannot be activated when you say “Ok Google” even when the Android smartphone’s “Ok Google” setting is on.
The Google app may not be activated depending on specifications of the smartphone or application version.
The Google app does not work when connected to a device not compatible with the voice assist function.
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A: Microphones (left, right)
For details on the apps which work with the Google app, refer to the operating instructions of the Android
smartphone.
After activating the Google app, the voice command is canceled when a certain time has passed without requests.
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Using the voice assist function (Siri)
By using the Siri feature that comes with iPhone, you can speak to the headset’s microphones to operate the iPhone.
Turn Siri on.
On iPhone, select [Settings] - [Siri & Search] to turn [Press Home for Siri] and [Allow Siri When Locked] on.
The operation above is an example. For details, refer to the operating instructions of the iPhone.
Note: For details on Siri, refer to the operating instructions or support website of the iPhone.
1
Put the headset units into your ears and connect the headset to the iPhone via Bluetooth connection.
2
Open the “Sony | Headphones Connect” app and set the function of either the left or right unit of the
headset as the voice assist function.
For details on the “Sony | Headphones Connect” app, refer to the following URL.
https://rd1.sony.net/help/mdr/hpc/h_zz/
3
When the iPhone is in standby or playing music, tap the headset to which you assigned the voice assist
function or in the area near your ear twice quickly (with an interval of about 0.2 seconds).
Siri is activated.
4
Make a request to Siri through the headset’s microphones.
A: Microphones (left, right)
For details on the apps which work with Siri, refer to the operating instructions of the iPhone.
After activating Siri, when a certain time has passed without requests, Siri will be deactivated.
You can also cancel a voice command by tapping the headset to which you assigned the voice assist function or in
the area near your ear 3 times quickly (with an interval of about 0.2 seconds).
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Note
The voice assist function (Siri) and the Google Assistant feature cannot both be assigned to the headset at the same time.
The voice assist function (Siri) and the Amazon Alexa feature cannot both be assigned to the headset at the same time.
Siri cannot be activated when you say “Hey Siri” even when the iPhone’s “Hey Siri” setting is on.
Siri may not be activated depending on specifications of the smartphone or application version.
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What you can do with the “Sony | Headphones Connect” app
When you connect the smartphone with the “Sony | Headphones Connect” app installed and the headset via Bluetooth
connection, you can do the following.
Update the headset software
Switch the voice guidance language
Turn the notification sound and voice guidance on/off
Change the function of the left and right units of the headset
Set the Quick Access function
Set the Bluetooth connection mode (sound quality mode)
Turn off the headset
Set the wearing detection automatic music playback pause/resume function
Set the wearing detection automatic power off function
Turn the wake word of Amazon Alexa on/off
Initialize the headset
Turn Service Link on/off
Turn wide area tap on/off
Check the headset software version
Display the Bluetooth connection status between left or right units of the headset and the smartphone
Display the Bluetooth connection codec
Display the DSEE (completion for high-range sound) function setting status
Display the remaining battery charge of the headset
Display the remaining battery charge of the charging case
Display notifications alerting you to charge the headset (when the remaining battery charge of the charging case is
low)
Select the Equalizer/CLEAR BASS setting
Customize the Equalizer setting
Set the DSEE (completion for high-range sound) function
Enable/disable the automatic audio detection for Speak-to-Chat and set it up
Play/pause music, skip to the beginning of the previous track (or the current track during playback)/skip to the
beginning of the next track
Turn Adaptive Volume Control on/off
Adjust the volume during music playback/phone call
Easy pairing
For details on the “Sony | Headphones Connect” app, refer to the following URL.
https://rd1.sony.net/help/mdr/hpc/h_zz/
Hint
The operation of the “Sony | Headphones Connect” app differs depending on the audio device. The app specifications and screen
design may change without prior notice.
Related Topic
Installing the “Sony | Headphones Connect” app
About the voice guidance
Using Quick Access
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Installing the “Sony | Headphones Connect” app
Related Topic
What you can do with the “Sony | Headphones Connect” app
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Download the “Sony | Headphones Connect” app from the Google Play store or App Store, and install the
app on your smartphone.
For details on the “Sony | Headphones Connect” app, refer to the following URL.
https://rd1.sony.net/help/mdr/hpc/h_zz/
1
After installing the app, launch the “Sony | Headphones Connect” app.
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Accessing support information from the “Sony | Headphones Connect” app
You can access the latest support information from the “Sony | Headphones Connect” app.
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Select [Help] on the “Sony | Headphones Connect” app screen.
1
The [Headphones Connect Help] screen appears and support information is displayed.
2
Select the desired item.
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How to keep the software up-to-date (for comfortable use of the headset)
Install the latest headset software using the “Sony | Headphones Connect” app to enjoy new functions or to resolve a
certain number of issues with the headset.
Always use the headset with the latest software installed.
For details on the latest headset software and how to update the software, refer to the information on the support
website.
When the [Automatic download of software] setting is enabled (default setting) on the “Sony | Headphones Connect”
app, the download and transfer of the software will start automatically.
You can also update the headset software in the following way.
Note
It is recommended to disable the automatic power off function of the headset before the update.
In the factory settings, when the headset is not worn for about 15 minutes, the headset turns off automatically. This setting can be
changed using the “Sony | Headphones Connect” app.
When the mobile device used for the update has any other Bluetooth devices connected to it, turn off all the Bluetooth devices
until the update is complete.
Software may not be updated when the mobile device is connected with other devices compatible with Bluetooth Low Energy
(such as wearable devices, smart watches, etc.).
Note the following if the update cannot be completed.
Close all the apps installed on the mobile device except the “Sony | Headphones Connect” app.
Fully charge the headset and the mobile device.
Put the headset and the mobile device being used for the update as close to each other as possible before starting the update.
Do not start the update if there are wireless LAN devices or other Bluetooth devices nearby.
Turn off the power saving mode (*) of your smartphone before updating the software.
Depending on the OS version of your smartphone, the update may not be completed under the power saving mode.
Related Topic
What you can do with the “Sony | Headphones Connect” app
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Download the update software from the server to the smartphone on which the “Sony | Headphones
Connect” app is installed.
1
Transfer the update software from the smartphone to the headset.
2
Update the headset software following the on-screen instructions.
3
Names may vary according to the smartphone you are using.*
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Precautions
On Bluetooth communications
Bluetooth wireless technology operates within a range of about 10 m (30 feet). The maximum communication
distance may vary depending on the presence of obstacles (people, metal objects, walls, etc.) or the electromagnetic
environment.
Microwaves emitting from a Bluetooth device may affect the operation of electronic medical devices. Turn off the
headset and other Bluetooth devices in the following locations, as it may cause an accident:
in hospitals, near priority seating in trains, locations where inflammable gas is present, near automatic doors, or
near fire alarms.
This product emits radio waves when used in wireless mode. When used in wireless mode on an airplane, follow
flight crew directions regarding permissible use of products in wireless mode.
The audio playback on the headset may be delayed from that on the transmitting device, due to the characteristics of
Bluetooth wireless technology. As a result, the sound may not be in sync with the image when viewing movies or
playing games.
The headset supports security functions that comply with the Bluetooth standard as a means of ensuring security
during communication using Bluetooth wireless technology. However, depending on the configured settings and other
factors, this security may not be sufficient. Be careful when communicating using Bluetooth wireless technology.
Sony shall assume no responsibility for any damages or loss resulting from information leaks that occur when using
Bluetooth communications.
Bluetooth connections with all Bluetooth devices cannot be guaranteed.
Bluetooth devices connected with the headset must comply with the Bluetooth standard prescribed by Bluetooth
SIG, Inc., and must be certified as compliant.
Even when a connected device complies with the Bluetooth standard, there may be cases where the
characteristics or specifications of the Bluetooth device make it unable to connect, or result in different control
methods, display, or operation.
When using the headset to perform hands-free talking on the phone, noise may occur depending on the
connected device or the communication environment.
Depending on the device to be connected, it may require some time to start communications.
The headset does not support multipoint connection.
With multipoint function support, the headset can connect to a music playback device (A2DP profile, Walkman®, etc.)
and a communication device (HFP or HSP profile, smartphone, etc.) at the same time, and you can listen to music
while waiting for an incoming call or making a call.
Note on temperature rise
While charging the headset or charging case, or when using the headset for a long time, the temperature of the
headset or charging case may rise, but this is not a malfunction.
Note on sound leakage
When the volume is increased, sound may leak due to the structure of the driver unit part of the headset. Be careful
not to raise the volume too much.
Note on static electricity
If you use the headset when the air is dry, you may experience discomfort due to static electricity accumulated on
your body. This is not a malfunction of the headset. You can reduce the effect by wearing clothes made of natural
materials that do not easily generate static electricity.
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Notes on wearing the headset
After use, remove the headset from your ears slowly.
The long-term use of the headset may cause symptoms such as itching and irritation in the ears.
If you experience any of the above symptoms while using the headset, stop using it immediately and consult a doctor
or your nearest Sony dealer.
For long-term use, it is recommended that you remove the headset from your ears on a regular basis.
Other notes
Do not subject the headset to excessive shock as it is a precision device.
The Bluetooth function may not work with a mobile phone, depending on the signal conditions and the surrounding
environment.
If you experience discomfort while using the headset, stop using it immediately.
If water or foreign matter enters the headset, it may result in fire or electric shock. If water or foreign matter enters the
headset, stop use immediately and consult your nearest Sony dealer. In particular, be careful in the following cases.
When using the headset near a sink or liquid container
Be careful that the headset does not fall into a sink or container filled with water.
When using the headset in the rain or snow, or in humid locations
Cleaning the headset
When the headset exterior is dirty, wipe it clean with a soft dry cloth. If the headset is particularly dirty, soak a cloth in
diluted neutral detergent, and wring it well before using it to clean the headset. Do not use solvents such as thinner,
benzene, or alcohol, as they may damage the finish on the surface of the headset or cause other damages.
Do not use the headset near medical devices
Radio waves can affect cardiac pacemakers and medical devices. Do not use the headset in crowded places such as
crowded trains or inside a medical institution.
The headset (including accessories) has magnet(s) which may interfere with pacemakers, programmable shunt
valves for hydrocephalus treatment, or other medical devices. Do not place the headset close to persons who use
such medical devices. Consult your doctor before using the headset if you use any such medical device.
Keep the headset units and charging case away from the magnetic card
The headset units and charging case use magnets. If you bring a magnetic card close to the headset, the card
magnet may be affected and become unusable.
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When you have finished using the headset
When you have finished using the headset, be sure to set the headset in the charging case.
Put the left unit of the headset (the unit with the tactile dot) back into the left hole of the charging case, put the right unit
of the headset back into the right hole of the charging case, insert the units until they click, and then make sure that the
units are locked in the charging case.
Close the lid of the charging case.
Note
If perspiration or water is left on the charging port, it may impair the ability to charge the headset. Immediately wipe off any
perspiration or water on the charging port after use. When the charging ports of the headset or charging case get dirty, wipe them
clean with a soft dry cloth.
When the headset gets wet
Use a soft dry cloth to wipe off any water that gets on the headset.1.
Turn the sound output part downward and gently tap it about 10 times on a dry cloth, etc. to remove any water
collected inside.
2.
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Turn the microphone hole downward and gently tap it about 10 times on a dry cloth, etc. to remove any water
collected inside.
3.
Leave the headset to dry in room temperature.4.
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To prevent burning or malfunction due to getting wet
Be sure to clean after use
Charging with liquid such as water or sweat or foreign objects such as dust attached to the USB Type-C port of the
charging case or charging port of the headset may cause an accident such as burns or serious wounds due to fire,
electrocution, heat generation, smoke, or ignition. It may also cause a malfunction.
Avoid the following situations and be careful not to get moisture or dirt on the headset or charging case.
If the headset or charging case gets wet or dirty, see “When the headset or charging case gets wet ” and clean them as
described before use.
Touching the headset or charging case without wiping your wet hands after doing housework in a kitchen or washing
your hands in a washroom.
Putting the headset or charging case in the chest pocket of a damp article of clothing.
Putting the headset or charging case in a bag with a cold PET bottle.
Spilling a drink while eating or drinking.
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When the headset or charging case gets wet
On water resistant performance of the headset
The charging case is not water resistant.
The water resistant specifications of this headset are equivalent to IPX4 in IEC 60529 “Degrees of protection against
ingress of water (IP Code)”, which specifies the degree of protection provided against the entry of water. The headset
cannot be used in water.
Unless the headset is used correctly, water may get into the headset and cause fire, electrocution, or malfunctions.
Note the following cautions carefully and use the headset correctly.
IPX4: Protected against water splashing from any direction.
The inside of the sound output parts and air holes on the headset are not completely watertight.
If any water droplets are left inside the sound output parts or air holes on the headset, the following issues may occur
temporarily, but they are not malfunctions.
Sounds become difficult to hear.
Unusual sounds are heard.
Voices during phone calls become difficult to hear.
Liquids that the water resistant performance specifications of the headset apply to
The water resistant performance of the headset is based on measurements performed by Sony under the conditions
described above. Note that malfunctions resulting from water immersion caused by customer misuse are not covered by
the warranty.
To protect the headset and charging case from being damaged
Carefully note the precautions below to ensure proper use of the headset.
Do not splash water forcibly into the sound output part or microphone of the headset.
Do not allow the headset to remain wet in a cold environment, as the water may freeze. To prevent malfunction,
make sure to wipe off any water after use.
Do not place the headset in water or use it in a humid place such as a bathroom.
Do not drop the headset or expose it to mechanical shock. Doing so may deform or damage the headset, resulting in
deterioration of water resistance performance.
If the headset gets wet,
Applicable: Fresh water, tap water, perspiration
Not
applicable:
Liquids other than those above (examples: soapy water, detergent water, water with bath agents,
shampoo, hot spring water, hot water, pool water, seawater, etc.)
Use a soft dry cloth to wipe off any water that gets on the headset.1.
Turn the sound output part downward and gently tap it about 10 times on a dry cloth, etc. to remove any water
collected inside.
2.
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If the headset units and charging case are charged while they are wet with sweat, etc., the charging ports will
corrode. Before charging, wipe off any moisture with a soft dry cloth and leave to dry in room temperature.
Repairs in case of a malfunction without care are not covered by the free warranty.
When the charging ports of the headset or charging case get dirty, wipe them clean with a soft dry cloth.
Do not wash pants or shirts with the headset units left in the pockets.
If the headset is cracked or deformed, refrain from using the headset near water, or contact your nearest Sony
dealer.
Turn the microphone hole downward and gently tap it about 10 times on a dry cloth, etc. to remove any water
collected inside.
3.
Leave the headset to dry in room temperature.4.
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License notice
Notes on the License
This product contains software that Sony uses under a licensing agreement with the owner of its copyright. We are
obligated to announce the contents of the agreement to customers under requirement by the owner of copyright for the
software.
Please read the contents of the license.
Access the following URL for the contents of the license.
https://rd1.sony.net/help/mdr/sl/21/
Disclaimer regarding services offered by third parties
Services offered by third parties may be changed, suspended, or terminated without prior notice. Sony does not bear any
responsibility in these sorts of situations.
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Trademarks
Windows is a registered trademark or trademark of Microsoft Corporation in the United States and/or other countries.
iPhone, iPod touch, macOS, Mac and Siri are trademarks of Apple Inc., registered in the U.S. and other countries.
App Store is a service mark of Apple Inc., registered in the U.S. and other countries.
IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license.
Google, Android and Google Play are trademarks of Google LLC.
Amazon, Alexa and all related logos are trademarks of Amazon.com, Inc. or its affiliates.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such
marks by Sony Group Corporation and its subsidiaries is under license.
USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum.
“DSEE” is a trademark of Sony Corporation.
The system names and product names indicated in this Help Guide are generally the trademarks or registered
trademarks of the manufacturer. In this manual, TM and ® marks are not specified.
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Customer support websites
For customers in the U.S.A, Canada, and Latin America:
https://www.sony.com/am/support
For customers in European countries:
https://www.sony.eu/support
For customers in China:
https://service.sony.com.cn
For customers in other countries/regions:
https://www.sony-asia.com/support
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What can I do to solve a problem?
If the headset does not function as expected, try the following steps to resolve the issue.
Find the symptoms of the issue in this Help Guide, and try any corrective actions listed.
Set the headset into the charging case and close the lid of the charging case.
You may be able to resolve some issues by setting the headset into the charging case.
Charge the headset.
You may be able to resolve some issues by charging the headset battery.
Restart the device that is being connected to the headset.
You may be able to resolve some issues by restarting the device being connected such as your computer or
smartphone.
Reset the headset.
Initialize the headset.
This operation resets volume settings, etc. to the factory settings, and deletes all pairing information.
Look up information on the issue on the customer support website.
If the operations above do not work, consult your nearest Sony dealer.
Related Topic
Charging
Customer support websites
Resetting the headset
Initializing the headset to restore factory settings
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Unable to turn on the headset.
Make sure the battery is fully charged.
You cannot turn on the headset when the headset is placed and being charged in the charging case. Remove the
headset from the charging case to turn it on.
Charge the charging case.
Set the headset into the charging case and close the lid of the charging case.
You may be able to resolve some issues by setting the headset into the charging case.
When Service Link is turned on with the “Sony | Headphones Connect” app, use the right unit of the headset. You
cannot use only the left unit of the headset.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
Related Topic
Charging
Checking the remaining battery charge
Turning on the headset
Resetting the headset
Initializing the headset to restore factory settings
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Charging cannot be done.
Common
Make sure the headset is set securely in the charging case.
Make sure to set the left and right headset units correctly in the charging case.
Be sure to use the supplied USB Type-C cable and check that the cable is firmly connected to the charging case.
If the fitting supporters are not properly attached to the headset, the headset may not be charged with the supplied
charging case. Check that the fitting supporters are attached properly when you store the headset in the charging
case.
When the charging ports of the headset or the charging case get dirty, the headset may not be charged. Clean the
charging ports with a soft dry cloth.
It is recommended to charge in a place with an ambient temperature between 15 °C and 35 °C (59 °F - 95 °F).
Efficient charging may not be possible beyond this range.
While charging, be sure to keep the lid of the charging case closed to prevent the battery of the charging case from
being wasted.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
When charging with a USB AC adaptor
Make sure that the USB AC adaptor is firmly connected to the AC outlet.
When using a commercially available USB AC adaptor, use one capable of supplying an output current of 0.5 A (500
mA) or more.
When charging with a computer
Check that the USB Type-C cable is firmly connected to the computer.
Check that the computer is turned on. Wake the computer up if the computer is in standby (sleep) or hibernation
mode.
Check that the charging case and the computer are directly connected and not via a USB hub.
There may be a problem with the USB port of the connected computer. Try connecting to another USB port on the
computer if one is available.
Update the OS of the computer.
Related Topic
Charging
Replacing the fitting supporters
Resetting the headset
Initializing the headset to restore factory settings
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The available operating time is short, the battery power does not last long, the battery
life of the left and right headset units is different.
If you set the following functions, the available operating time of the battery becomes short.
Equalizer
DSEE
Speak-to-Chat
Function to launch the voice assist function by your voice
Service Link
Sound quality mode during Bluetooth playback: Priority on sound quality
If you run the above settings at the same time, the available operating time of the battery becomes even shorter.
Depending on the settings for the headset functions and usage conditions, the speed of energy consumption for the
rechargeable battery may vary between the left and right units. However, this is not a malfunction.
If you use both headset units immediately after using only one unit of the headset, there may be a difference in the
remaining battery charge. This is not a mulfunction because the remaining battery charge on one side is consumed.
When you have finished using the headset, be sure to set the headset in the charging case. If the headset is placed
in the pockets, etc., the headset recognizes that the headset is worn, and it may turn on by mistake.
Be sure to close the lid of the charging case to prevent the battery of the charging case from being consumed.
When talking on the phone, the available operating time of the battery is shorter than when playing music.
Related Topic
Available operating time
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Charging time is too long.
When charging with a computer, check that the charging case and the computer are directly connected and not via a
USB hub. Also, this may be improved by restarting the computer and trying the USB connection again.
Check that you are using the supplied USB Type-C cable.
Depending on the settings for the headset functions and the usage conditions, the speed of energy consumption for
the rechargeable battery may vary between the left and right units.
As a result, the charging time of the rechargeable batteries for the left and right units may differ, but this is not a
malfunction.
It is recommended to charge in a place with an ambient temperature between 15 °C and 35 °C (59 °F - 95 °F).
Efficient charging may not be possible beyond this range.
When using a commercially available USB AC adaptor, use one capable of supplying an output current of 0.5 A (500
mA) or more.
Related Topic
Charging
Resetting the headset
Initializing the headset to restore factory settings
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No sound, no sound from one side
Common
Pair the headset and the Bluetooth device again.
Charge the charging case.
Set the headset into the charging case and close the lid of the charging case.
You may be able to resolve some issues by setting the headset into the charging case.
Restart the smartphone or the computer you use.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
When the Speak-to-Chat mode is activated, music playback will pause. In this case, operate the headset to exit the
Speak-to-Chat mode.
You can use the “Sony | Headphones Connect” app to switch between enable or disable for Speak-to-Chat.
When connecting to a computer
If you are connecting a computer to the headset, make sure the audio output setting of the computer is set for a
Bluetooth device.
Restart the music app or video app.
When there is no sound on only one side
When Service Link is turned on with the “Sony | Headphones Connect” app, use the right unit of the headset. You
cannot use only the left unit of the headset.
When the Google Assistant or Amazon Alexa feature is assigned to the headset and you want to use only one unit of
the headset, use the unit with the Google Assistant or Amazon Alexa feature assigned.
You can change the function assignments to the left and right units of the headset using the “Sony | Headphones
Connect” app.
Depending on the smartphone app or computer application (which requires HFP (Hands-free Profile)/HSP (Headset
Profile)), you may hear a voice from only one unit.
Related Topic
Using only one unit of the headset
How to make a wireless connection to Bluetooth devices
Listening to music from a device via Bluetooth connection
Resetting the headset
Initializing the headset to restore factory settings
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Low sound level
If the headset is not worn properly in your ears, you may not obtain proper sound quality or volume.
Check that you are wearing the headset properly in your ears.
Turn up the volume of the connected device.
When the volume adjustment function is assigned to the headset with the “Sony | Headphones Connect” app, you
can adjust the volume on the headset during music playback or while talking.
Connect the Bluetooth device to the headset once again.
The inside of the sound output parts and air holes on the headset are not completely watertight. If any water droplets
are left inside the sound output parts or air holes on the headset, the sound level becomes low temporarily, but this is
not a malfunction. See “When you have finished using the headset” and dry the headset as described before use.
Set the headset into the charging case and close the lid of the charging case.
You may be able to resolve some issues by setting the headset into the charging case.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
Note
Depending on the connected device, the volume of the device and the headset may or may not be synced. If the volume on a
device is not synced to the volume on the headset, it will not be possible to use the device to turn up the volume on the headset
once the volume is turned down on the headset.
In that case, turn up the volume of both the headset and the connected device.
If the sound is still low even after adjusting the volume on the connected device, adjust the volume with the “Sony | Headphones
Connect” app.
Related Topic
Wearing the headset
Resetting the headset
Initializing the headset to restore factory settings
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Low sound quality
If the headset is not worn properly in your ears, tap operations or Speak-to-Chat speech detection may not work
correctly, or you may not obtain the correct sound qualities or call performance. If the part of the headset where
sound is output is not oriented correctly toward the ear canal, the sound quality may sound poor or the left and right
sound localization may sound misaligned.
If any of this is the case, check that you are wearing the headset properly in your ears.
Turn down the volume of the connected device if it is too loud.
Switch the Bluetooth connection to A2DP with the connected device when the headset and the transmitting Bluetooth
device are connected via an HFP or HSP Bluetooth connection.
If you connect the headset to the previously connected Bluetooth device, the headset may only establish the
HFP/HSP Bluetooth connection when it is turned on. Use the connected device to connect via an A2DP Bluetooth
connection.
When listening to music from a computer on the headset, the sound quality may be poor (e.g., difficult to hear the
singer’s voice, etc.) for the first few seconds after a connection is established. This is due to the computer
specifications (priority on stable connection at the start of transmission and then switches to priority on sound quality
several seconds later) and is not a headset malfunction.
If the sound quality does not improve after a few seconds, use the computer to establish an A2DP connection. As for
the operations on your computer, refer to the operating instructions supplied with the computer.
Related Topic
Wearing the headset
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Sound skips frequently.
Set the headset to “Priority on stable connection”. For details, see “About the sound quality mode”.
The situation may be improved by changing the wireless playback quality settings on the transmitting device. For
details, refer to the operating instructions supplied with the transmitting device.
Remove any obstacles between the antenna of the connecting Bluetooth device and the antennas built into the left
and right units of the headset. The antenna of each left or right unit of the headset is built into the part shown in the
dotted line below.
A: Locations of the built-in antennas (left, right)
Bluetooth communications may be disabled, or noise or audio dropout may occur under the following conditions.
When there is a human body between the headset and the Bluetooth device
In this case, moving the Bluetooth device closer to the antenna of the headset may improve the Bluetooth
communications.
When there is an obstacle, such as metal or a wall, between the headset and the Bluetooth device
In places with wireless LAN, where a microwave oven is used, electromagnetic waves are generated, etc.
Where there are other wireless communication audio devices or other people nearby, such as in train station
premises or on a crowded train
If you are enjoying music with your smartphone, the situation may be improved by shutting down unnecessary apps
or restarting your smartphone. If you are enjoying music with your computer, close unnecessary applications or
windows and restart the computer.
Connect the headset and the Bluetooth device once again.
Set the headset into the charging case and close the lid of the charging case, and then remove the headset from the
charging case to connect the headset to the Bluetooth device.
Turning off Service Link on the “Sony | Headphones Connect” app may reduce the amount of audio dropout.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
Related Topic
About the sound quality mode
Resetting the headset
Initializing the headset to restore factory settings
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Noise is heard during music playback.
When you use the headset while you are walking or running, the sound of vibrations may be heard through your
body, but this is due to the characteristics of the product and not a malfunction.
The inside of the sound output parts and air holes on the headset are not completely watertight. If any water droplets
are left inside the sound output parts or air holes on the headset, a beeping sound (feedback) may be heard
temporarily. This is not a malfunction. See “When you have finished using the headset” and dry the headset as
described before use.
If you cover the microphones of the left or right unit of the headset, or if you grasp the headset unit in your hand, a
beeping sound (feedback) may be heard. This is not a malfunction. If any of this is the case, remove your hands, etc.
from the left and right microphones.
Charge the charging case.
Set the headset into the charging case and close the lid of the charging case.
You may be able to resolve some issues by setting the headset into the charging case.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
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Pairing cannot be done.
Bring the headset and the Bluetooth device within 1 m (3 feet) from each other.
When pairing for the first time after purchasing, initializing, or repairing the headset, the headset enters pairing mode
automatically if you remove the headset from the charging case. To pair a second or subsequent device, set the
headset into the charging case, and then press and hold the pairing button of the charging case for about 5 seconds
to enter pairing mode.
The headset cannot go into pairing mode if the headset is not set securely in the charging case, such as when the
fitting supporters are not properly attached to the headset. Make sure the headset is set securely in the charging
case.
When pairing a device once again after initializing or repairing the headset, you may be unable to pair the device if it
retains pairing information for the headset (iPhone or other device). In this case, delete the pairing information for the
headset from the device and pair them again.
Restart the connected device such as a smartphone or a computer you use, and pair the headset and the device
again.
Charge the charging case.
Set the headset into the charging case and close the lid of the charging case.
You may be able to resolve some issues by setting the headset into the charging case.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
Related Topic
How to make a wireless connection to Bluetooth devices
Replacing the fitting supporters
Resetting the headset
Initializing the headset to restore factory settings
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Unable to make a Bluetooth connection.
Check that the headset is turned on.
Check that the Bluetooth device is turned on and the Bluetooth function is on.
If the headset automatically connects to the last connected Bluetooth device, you may fail to connect the headset to
other devices via Bluetooth connection. If this is the case, operate the last connected Bluetooth device and
disconnect the Bluetooth connection.
Check if the Bluetooth device is in sleep mode. If the device is in sleep mode, cancel the sleep mode.
Check if the Bluetooth connection has been terminated. If terminated, make the Bluetooth connection again.
If the pairing information for the headset has been deleted on the Bluetooth device, pair the headset with the device
again.
Charge the charging case.
Set the headset into the charging case and close the lid of the charging case.
You may be able to resolve some issues by setting the headset into the charging case.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
Related Topic
How to make a wireless connection to Bluetooth devices
Resetting the headset
Initializing the headset to restore factory settings
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The headset does not operate properly.
You cannot operate the headset when you are not wearing the headset. Put the headset into your ears to operate.
When you change the assignment of the functions to the left and right units of the headset with the “Sony |
Headphones Connect” app, confirm on the app that the correct functions are assigned to them.
If wide area tap is turned on (default setting) on the “Sony | Headphones Connect” app and the headset is having
difficulty detecting tap operations, it may respond if you change the tap strength or where you tap. The headset may
also respond if you tap with 2 fingers.
When wide area tap is turned off on the “Sony | Headphones Connect” app, tap the headset to operate.
If the headset still cannot be operated, tap harder with an interval of about 0.2 seconds between taps.
Charge the charging case.
Set the headset into the charging case and close the lid of the charging case.
You may be able to resolve some issues by setting the headset into the charging case.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
Related Topic
Wearing the headset
About wide area tap
What you can do with the “Sony | Headphones Connect” app
Resetting the headset
Initializing the headset to restore factory settings
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Cannot hear a person during a call/low voice from callers, your voice does not reach
the person during a call/your voice is low on the caller’s side.
Check that both the headset and the connected device are turned on.
Turn up the volume of the connected device if it is too low.
When you use the video calling application, open the settings (*) of the video calling application, and check that the
speaker or microphone setting is specified as [Headset (LinkBuds Hands-Free)](**). When the settings of the video
calling application cannot be checked or calling connections [Headset (LinkBuds Hands-Free)] cannot be selected,
select [Headset (LinkBuds Hands-Free)] on the settings of your computer to make connections.
If the headset is not worn properly in your ears, tap operations or Speak-to-Chat speech detection may not work
correctly, or you may not obtain the correct sound qualities or call performance.
If any of this is the case, check that you are wearing the headset properly in your ears.
Set the headset into the charging case and close the lid of the charging case. Then, take out the headset, and
reconnect with the Bluetooth device.
Restart the Bluetooth device such as your smartphone or computer, and reconnect with the headset.
Set the headset into the charging case and close the lid of the charging case.
You may be able to resolve some issues by setting the headset into the charging case.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
Related Topic
How to make a wireless connection to Bluetooth devices
Receiving a call
Making a call
Wearing the headset
Resetting the headset
Initializing the headset to restore factory settings
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Depending on the video calling application you are using, this function may not be available.
*
Names may vary according to the computer or the video calling application you are using.
**
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The headset does not operate correctly or wide area tap works unintentionally
Wide area tap is a function that detects vibration around the ears with the acceleration sensors that are built into the
headset and determines the tap operations. Therefore, it may be erroneously detected as tapped by actions such as
putting on or taking off surgical masks or glasses, and chewing.
If the headset often does not operate correctly, this may be improved by using the “Sony | Headphones Connect” app
to turn wide area tap off and switch to headset tap instead.
Charge the charging case.
Set the headset into the charging case and close the lid of the charging case.
You may be able to resolve some issues by setting the headset into the charging case.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
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An earache occurs
If you feel the size of the fitting supporters does not fit your ears, change the fitting supporters to another size that fits
your ears better. The size of the left and right fitting supporters may be different.
Check that you are wearing the headset properly in your ears.
If you wear the headset for a long time, your ears may start hurting. Use the headset while taking breaks periodically.
Related Topic
Replacing the fitting supporters
Wearing the headset
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Resetting the headset
If the headset cannot be turned on or cannot be operated even when it is turned on, reset the headset. Reset one of the
headset units at a time.
Set a headset unit into the charging case.
Put only one headset unit back into the hole of the charging case, insert it until it clicks and then make sure it is
locked in the charging case.
1
Close the lid of the charging case.
By closing the lid once, the headset units are straightened and locked in place, even if they were not locked in the
charging case before.
2
Hold the charging case in your hand and press the lid open button to open the lid.
3
Press and hold the reset button of the charging case for about 20 seconds.
After about 15 seconds, the indicator (orange) on the charging case flashes slowly for about 5 seconds.
4
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The device registration (pairing) information and other settings are retained.
If the headset does not operate correctly even after resetting, initialize the headset to restore factory settings.
About the instruction manual video
Watch the video to find out how to reset.
https://rd1.sony.net/help/mdr/mov0036/h_zz/
Related Topic
Initializing the headset to restore factory settings
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Then, the indicator on the charging case turns off and the headset will be reset.
When resetting is complete, the indicator (orange or green) on the charging case lights up for about 3 seconds to
show the remaining battery charge of the headset, and then turns off.
Check that the indicator turns off and then release your finger.
5
Remove the headset unit from the charging case and start the operation again from step
with the other
headset unit.
6
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Help Guide
Wireless Stereo Headset
LinkBuds
Initializing the headset to restore factory settings
If the headset does not operate correctly even after resetting, initialize the headset.
Set the headset into the charging case.
Put the left unit of the headset (the unit with the tactile dot) back into the left hole of the charging case, put the right
unit of the headset back into the right hole of the charging case, insert the units until they click, and then make sure
that the units are locked in the charging case.
1
Close the lid of the charging case.
By closing the lid once, the headset units are straightened and locked in place, even if they were not locked in the
charging case before.
2
Hold the charging case in your hand and press the lid open button to open the lid.
3
Press and hold the initialize button of the charging case for about 15 seconds.
The indicator (blue) on the charging case repeatedly flashes twice in a row, and then the indicator (orange) starts
flashing.
4
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This operation resets volume settings, etc. to the factory settings, and deletes all pairing information. In this case, delete
the pairing information for the headset from the connected device and then pair them again.
If the headset does not operate correctly even after initializing, consult your nearest Sony dealer.
About the instruction manual video
Watch the video to find out how to initialize.
https://rd1.sony.net/help/mdr/mov0037/h_zz/
Hint
You can also initialize the headset with the “Sony | Headphones Connect” app.
Note
When the remaining battery charge of the charging case is not sufficient, the headset will not start initializing. Charge the
charging case.
If the indicator (green) on the charging case does not flash 4 times after performing step
, the headset has not been
initialized. Try again from step
.
If you have updated the software after purchasing the headset, the software is retained updated even if you initialize the headset.
When you initialize the headset to restore to the factory settings after you change the language of the voice guidance, the
language will also return to the factory settings.
Release your finger within 5 seconds after the indicator (orange) on the charging case starts flashing.
When the initializing is complete, the indicator (green) on the charging case flashes 4 times.
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Help Guide
Wireless Stereo Headset
LinkBuds
Specifications
Headset
Power source:
DC 3.85 V: Built-in lithium-ion rechargeable battery
DC 5 V: When charged using USB
Operating temperature:
0 °C to 40 °C (32 °F to 104 °F)
Charging time:
Approx. 1.5 hours (Headset)
Approx. 3 hours (Charging case)
Note
Charging and usage hours may be different depending on the conditions of use.
Charging temperature:
5 °C to 35 °C (41 °F to 95 °F)
Mass:
Approx. 4.1 g × 2 (0.15 oz × 2) (Headset (including fitting supporters (M)))
Approx. 34 g (1.20 oz) (Charging case)
Communication specification
Communication system:
Bluetooth Specification version 5.2
Output:
Bluetooth Specification Power Class 1
Maximum communication range:
Line of sight approx. 10 m (30 ft) (*1)
Frequency band:
2.4 GHz band (2.4000 GHz - 2.4835 GHz)
Compatible Bluetooth profiles (*2):
A2DP/AVRCP/HFP/HSP
Supported Codec (*3):
SBC
AAC
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Transmission range (A2DP):
20 Hz - 20,000 Hz (Sampling frequency 44.1 kHz)
Design and specifications are subject to change without notice.
Compatible iPhone/iPod models
iPhone 12 Pro Max, iPhone 12 Pro, iPhone 12, iPhone 12 mini, iPhone SE (2nd generation), iPhone 11 Pro Max, iPhone
11 Pro, iPhone 11, iPhone XS Max, iPhone XS, iPhone XR, iPhone X, iPhone 8 Plus, iPhone 8, iPhone 7 Plus, iPhone 7,
iPhone SE, iPhone 6s Plus, iPhone 6s, iPhone 6 Plus, iPhone 6, iPhone 5s, iPod touch (7th generation), iPod touch (6th
generation)
(As of December 2021)
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The actual range will vary depending on factors such as obstacles between devices, magnetic fields around a microwave oven, static electricity,
reception sensitivity, antenna’s performance, operating system, software application, etc.
*1
Bluetooth standard profiles indicate the purpose of Bluetooth communications between devices.
*2
Codec: Audio signal compression and conversion format
*3
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Help Guide
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LinkBuds
Text for video on how to wear the headset
This page uses text to describe the names and shapes of the LinkBuds parts and the contents of the video on how to
wear your LinkBuds.
Part name and shape descriptions
With the side of the charging case with the lid open button facing you, open the charging case by holding down the lid
open button as you open the top lid away from you.
The headset unit in the right side of the charging case is for the right ear, and the unit in the left side is for the left ear.
Each headset unit consists of a housing part that protrudes outward like a dome and a donut-shaped driver unit part.
When taking out a headset unit, use your fingers to grasp the unit by the housing part.
The housing part is fitted with a ring made of silicone material, and there is a protruding semicircular part on this ring.
This ring is called a fitting supporter.
The left and right units of the headset can also be told apart by touch.
On the left unit, there is a very small tactile dot near the base of the semicircular part of the fitting supporter.
Alternative text for video
The title of the video is
“LinkBuds Wearing the headset Replacing the fitting supporters”.
The information in the video is explained with only illustrations.
This text will be explained in the same order as the video.
The following is an explanation of how to wear the headset.
Use your fingers to grasp the housing part of a headset unit to pick it up.
Align the doughnut-shaped driver unit part with the opening of your ear canal and insert the headset unit into your ear.
While inserting the unit, make sure the semicircular part of the fitting supporter is pointed upward.
Push the semicircular part into your ear to finish wearing the headset unit.
If the semicircular part is hooked into your ear and the headset unit does not fall off your ear even when you shake your
head, it has been worn properly.
If the headset unit does not feel fitted, such as if the semicircular part cannot be inserted into your ear or the fit of the
semicircular part is so loose that the headset unit feels like it is falling off your ear, stop using the headset and replace
the fitting supporter with one of an appropriate size.
The size that fits your ear may be different for the left and right ear.
To remove the headset unit, use your fingers to grasp the housing part and pull the unit off your ear.
The following is an explanation of the fitting supporters.
The size of the fitting supporter varies with the size of the semicircular part.
M-sized fitting supporters come attached to the headset at the time of purchase.
The fitting supporters in other sizes can be found inside the small, rectangular box.
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The fitting supporters are common for both left and right sides.
Touch the semicircular parts to feel the difference between the sizes.
The following is an explanation on how to replace the fitting supporters.
To remove the fitting supporter from the headset unit, grasp the semicircular part and pull it down toward the protruding
part of the housing.
After the fitting supporter is removed, look for a thin protrusion located where the fitting supporter was attached.
At the bottom of the semicircular part of the fitting supporter, there is an opening into which the thin protrusion on the
housing can be inserted.
When attaching a fitting supporter, pass the protrusion on the housing through this opening to fix the fitting supporter in
place.
Ensure the fitting supporter is not attached in a slightly different position.
If the fitting supporter is attached incorrectly, the headset does not fit in the charging case, and it cannot charge or pair
with other devices.
Make sure the thin protrusion is properly inserted through the opening.
After replacing the fitting supporter, lightly tug on the semicircular part and check that it does not budge.
Finally, the Sony logo appears, and the video ends.
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