Help Guide
Wireless Speaker
ULT FIELD 5
Model: YY7859E
Design and specifications are subject to change without notice.
Quick Start Guide
Connect to the app for even more fun and convenience
Many useful features are out there in your device.
Download the “Sony | Sound Connect” app and get the most out of what you have.
Let’s start to use
After purchasing the speaker, follow the procedure below to play music.
1
SRS-ULT50
Turning the power on
Press the (power) button. When you use the speaker for the first time after purchase, the speaker
automatically enters pairing mode and the (BLUETOOTH) indicator starts double flashing.
Connecting with BLUETOOTH
®
devices
Follow the instructions on the downloaded “Sony | Sound Connect” app to establish a BLUETOOTH
connection between the speaker and your smartphone or iPhone. When a BLUETOOTH connection
is established, you hear the notification sound from the speaker and the activity of the
(BLUETOOTH) indicator changes from flashing to lit.
Listening to music
Start playback on a BLUETOOTH device.
Getting started
Parts and controls
Placing the speaker
Included items
Using the shoulder strap
Power source/charging
Charging the speaker
Turning the power on
Turning the power off
Using the BLUETOOTH standby (auto power on) function
Charging a USB device such as a smartphone or iPhone
Automatic Power Off (power saving) function
Using the speaker with less power consumption of the rechargeable battery (STAMINA)
Lighting function
Turning on/off the speaker’s light (Lighting function)
Making connections
BLUETOOTH device
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How to make wireless connections to BLUETOOTH devices
Connecting to BLUETOOTH devices easily with the “Sony | Sound Connect” app via a BLUETOOTH connection
Pairing and connecting with BLUETOOTH devices
Connecting with a computer via a BLUETOOTH connection (Windows
®
)
Connecting with a computer via a BLUETOOTH connection (Mac)
Multipoint connection
Connecting the speaker concurrently with 2 BLUETOOTH devices (multipoint connection)
Listening to music
BLUETOOTH device
Listening to music of a device via a BLUETOOTH connection
Selecting the quality for music playback via a BLUETOOTH connection (Codec)
Supported codecs
Terminating the BLUETOOTH connection (After use)
Turning on or off the BLUETOOTH function
Listening to music of a portable audio device, etc. through a wired connection
Enjoying switching the sound effects
Stereo Pair function
Listening to music wirelessly with 2 speakers (Stereo Pair function)
Party Connect function
Enjoying wireless playback using multiple speakers (Party Connect function)
Using the apps
What you can do with the “Sony | Sound Connect” app
Installing the “Sony | Sound Connect” app
Accessing support information from the “Sony | Sound Connect” app
How to keep the software up-to-date (for comfortable use of the speaker)
Information
About the indicators
Notes on use
Precautions
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Notes on charging
Notes on waterproof and dustproof features
How to care for the speaker
About the BLUETOOTH wireless technology
Licenses
Trademarks
Troubleshooting
Troubleshooting
Reset
Restarting the speaker
Initializing the speaker
Specifications
Specifications
4
Note
The port and jacks on the speaker are not designed for waterproof and dustproof. Do not use the speaker in places where the
speaker is likely to have water splashed on it. When you are finished with using the speaker, be sure to securely close the cap.
Related Topic
About the indicators
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(play) button
*1
5.
–/+ (volume) buttons6.
ULT button7.
Storage caps8.
Lights9.
AUDIO IN jack (Φ 3.5 mm)
*2
10.
DC IN/OUT port (USB Type-C
®
)
*3
11.
BATTERY button/ BATTERY CARE button12.
LIGHT button13.
Cap14.
Pressing and holding the (play) button on the speaker for about 5 seconds makes the speaker play the music track stored for demonstration
purposes. To disable this feature, press the (play) button once again.
*1
Plugging an audio cable disables audio output from the BLUETOOTH device.
*2
This port is not compatible with music playback.
*3
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Help Guide
Wireless Speaker
ULT FIELD 5
Using the shoulder strap
It is recommended that you attach the supplied shoulder strap to the speaker in advance and carry it with the strap.
Attaching the shoulder strap
Hook your finger on the tab of the storage cap on the speaker and lift it up.1.
Rotate the storage cap on the left side clockwise as shown in the illustration. While pinching and lifting the attachment
loop with your fingers, push the storage cap down.
2.
Rotate the storage cap on the right side counterclockwise as shown in the illustration. While pinching and lifting the
attachment loop with your fingers, push the storage cap down.
3.
Pass the hooks of the shoulder strap through the left and right attachment loops.4.
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Removing the shoulder strap
Remove the hooks of the shoulder strap from the attachment loops on the speaker.
To make it easier to remove the hook, pinch and lift the attachment loop with your fingers, and then tilt the hook.
1.
Hook your finger on the tab of the storage cap on the left side and lift it up. Rotate the storage cap counterclockwise
as shown in the illustration and push it down.
2.
Hook your finger on the tab of the storage cap on the right side and lift it up. Rotate the storage cap clockwise as
shown in the illustration and push it down.
3.
9
Note
Do not use any strap other than the supplied shoulder strap.
When using the shoulder strap, note the following:
Be aware that the shoulder strap may catch on surrounding objects and tighten around your neck.
Do not engage in strenuous exercise.
To prevent accidental dropping, wear the shoulder strap diagonally across your body while carrying the speaker.
If the hook of the shoulder strap is not fully passed through the attachment loop, it may come loose and cause the speaker to
fall.
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Help Guide
Wireless Speaker
ULT FIELD 5
Charging the speaker
The speaker is capable of running on power either from an AC outlet connected by a commercially available USB AC
adaptor (with or without USB PD (USB Power Delivery) compatibility) along with the supplied USB Type-C cable, or from
its rechargeable built-in battery.
When using the speaker for the first time, be sure to charge the built-in battery for more than 1 hour before turning on the
speaker.
With the built-in battery charged in advance, you can use the speaker solely with battery power.
System requirements for charging battery using USB
Using a commercially available USB PD compatible AC adaptor capable of delivering DC 5 V / 3.0 A or DC 9 V / 3.0
A.
*1
Using a commercially available USB AC adaptor capable of delivering an output current of 1.5 A or more.
*2
Use of any other USB AC adaptor is not guaranteed for battery charging.
Hint
For charging the built-in battery of the speaker, the Battery Care mode option is available in addition to the normal charging
method. Battery Care mode limits the maximum charge capacity to approximately 90% and makes the battery life last longer. The
playback time available in Battery Care mode is shorter than the time available when the built-in battery is charged by the normal
charging method. At the time of purchase, the speaker is not in Battery Care mode.
While the speaker is turned on, pressing and holding the BATTERY button/ BATTERY CARE button behind the cap on the
rear side of the speaker for about 2 seconds places the speaker into Battery Care mode and you hear voice guidance (Battery
Care mode, ON) from the speaker. Pressing and holding the BATTERY button/ BATTERY CARE button once again for about
2 seconds brings the speaker out of Battery Care mode and you hear voice guidance (Battery Care mode, OFF) from the
speaker.
You can place/bring the speaker into/out of Battery Care mode with the “Sony | Sound Connect” app as well.
We do not guarantee the operations with all the devices compatible with USB PD.
*1
You can use a USB AC adaptor with an output current of 500 mA or more and less than 1.5 A as well, but the charging time will be several times
longer. If you use such a USB AC adaptor, it is recommended that you turn off the speaker before battery charging.
*2
Connect the speaker to an AC outlet to charge it.
Connect the DC IN/OUT port (USB Type-C) on the speaker and a USB AC adaptor using the supplied USB Type-C
cable. Then, plug the USB AC adaptor to an AC outlet.
The CHARGE indicator on the speaker lights up in orange while charging is in progress and turns off when charging
is complete.
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11
Checking the charging completion
If the built-in battery is fully charged when you connect the speaker to an AC outlet with a commercially available USB AC
adaptor (with or without USB PD compatibility), the CHARGE indicator lights up in orange then turns off after about 1
minute.
Checking the built-in battery level of the rechargeable built-in battery
After pressing the BATTERY button behind the cap on the rear side of the speaker, when the speaker is turned on, the
voice guidance listed below is output from the speaker depending on the remaining built-in battery power.
81% - 100%: “Battery fully charged”
81% - 90% (Battery Care mode): “Battery Care Mode, Fully Charged, Battery About 90%”
61% - 80%: “Battery about 80%”
41% - 60%: “Battery about 60%”
21% - 40%: “Battery about 40%”
1% - 20%: “Low Battery”
Hint
By using the “Sony | Sound Connect” app, you can activate/deactivate the voice guidance associated with the remaining battery
power that you hear when you turn on the speaker.
Built-in battery life (while the speaker is not in Battery Care mode and a BLUETOOTH connection is
established)
Approx. 25 hours
Volume level: 18
Sound: ULT1/2 on
Lighting: off
Approx. 10 hours
Volume level: 18
Sound: ULT1/2 on
Lighting: on
Approx. 2.5 hours
Volume level: 50
Sound: ULT1/2 on
Lighting: on
Time required for charging the built-in rechargeable battery (while Battery Care mode is not
activated)
When a commercially available USB PD compatible AC adaptor capable of delivering DC 9 V 3.0 A is connected,
charging completes in about 3.5 hours
*
.
After you disconnect the USB cable from the speaker, be sure to close the cap securely.
The cap plays a very important role in maintenance of the waterproof and dustproof performance.
Time required for the empty battery to be fully charged (100%) while the speaker is powered off.
*
12
Approx. 3.5 hours
*1 *2
10 minutes of charging provide approximately 100 minutes of music playback.
Volume level: 18
Sound: ULT1/2 on
Lighting: off
Note
The estimated charging time varies depending on the power output capacity of the connected commercially available USB AC
adaptor (with or without USB PD compatibility). In addition, it may take longer than the charging time stated above depending on
the type and specification of the USB AC adaptor (with or without USB PD compatibility) and USB cable. The charging time may
vary depending on the ambient temperature or the usage of the speaker as well.
The built-in battery life above is measured using our specified music source.
Actual performance time may vary from the listed time due to the volume, songs played, surrounding temperature, and
usage conditions.
When the built-in battery is running low
When the voice guidance says “Low Battery” and the CHARGE indicator on the speaker starts flashing slowly, the built-in
battery is running low and needs to be charged. While in this state, the speaker may not be capable of supplying power
to other devices and may automatically turn off.
When the remaining battery decreases to such a level that the speaker cannot be turned on, you hear voice guidance
(Battery is empty.) and the speaker automatically turns off. In such a case, charge the speaker.
If the CHARGE indicator on the speaker flashes 3 times in orange and the speaker turns off when you turn on the
speaker, the built-in battery is empty and needs to be charged.
Hint
As long as the speaker is connected to an AC outlet by a commercially available USB AC adaptor (with or without USB PD
compatibility), the speaker's built-in battery is capable of charging itself even while music playback from the speaker is in
progress. However, it may take a long time before charging completes depending on the usage of the speaker. It is recommended
that you turn off the speaker before battery charging.
Turn on STAMINA on the “Sony | Sound Connect” app to reduce the power consumed while using the rechargeable built-in
battery so you can enjoy playing music for a longer time.
Note
Depending on the type or specifications of the USB AC adaptor (with or without USB PD compatibility), if you use the speaker at a
loud volume, the remaining power of the rechargeable built-in battery may decrease or the speaker may turn off even while the
speaker is connected to an AC outlet by the USB AC adaptor. This, however, does not indicate a malfunction. If such a case
occurs, turn off the speaker and let the battery fully charge itself before you use the speaker.
The maximum power output of the speaker may be lower when the built-in battery is running low.
In an extremely cold or hot environment, charging stops for safety. If charging takes a long time, it also makes charging of the
speaker stop. To resolve these issues, disconnect the USB cable, and then connect it again within a battery charging temperature
between 5 °C and 35 °C (41 °F and 95 °F).
If the built-in battery is under a high load during charging, charging stops for safety. In such a case, turn down the volume or stop
the playback.
Do not charge the speaker's built-in battery in places where water may splash on it. The supplied accessories and the connectors
of this speaker (USB, AUDIO IN) are neither waterproof nor dustproof.
Time required for the empty battery to be fully charged (100%) while the speaker is turned off.
*1
When using a USB PD compatible AC adaptor capable of delivering DC 9 V 3.0 A.
*2
13
Even if you do not intend to use the speaker for a long time, charge the built-in battery sufficiently once every 6 months to
maintain its performance.
Related Topic
Turning the power on
What you can do with the “Sony | Sound Connect” app
Notes on charging
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Help Guide
Wireless Speaker
ULT FIELD 5
Turning the power on
Note
When the voice guidance says “Low Battery” and the CHARGE indicator starts flashing slowly, the built-in battery is running low
and needs to be charged. While in this state, the speaker may not be capable of supplying power to other devices and may
automatically turn off.
When the remaining battery decreases to such a level that the speaker cannot be turned on, you hear voice guidance (Battery is
empty.) and the speaker automatically turns off. In such a case, charge the speaker.
If the CHARGE indicator flashes 3 times in orange and the speaker turns off when you turn on the speaker, the built-in battery is
empty and needs to be charged.
Related Topic
Charging the speaker
Turning the power off
Turning on/off the speaker’s light (Lighting function)
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Press the (power) button on the speaker.
You hear the notification sound from the speaker, the (power) indicator on the speaker lights up in white, and the
(BLUETOOTH) indicator on the speaker starts flashing slowly in blue.
When the speaker has no pairing information, for example when you use the BLUETOOTH function for the first time
after purchase, the (BLUETOOTH) indicator on the speaker keeps double flashing in blue.
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Help Guide
Wireless Speaker
ULT FIELD 5
Turning the power off
Hint
While the speaker is connected to an AC outlet by a USB PD compatible AC adaptor and the BLUETOOTH standby function is
activated, turning off the speaker lights the
(power) indicator in orange to indicate the BLUETOOTH standby function is active
*
.
Related Topic
Using the BLUETOOTH standby (auto power on) function
Automatic Power Off (power saving) function
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Press the (power) button on the speaker.
You hear the notification sound from the speaker, and the (power) indicator and the (BLUETOOTH) indicator on
the speaker turn off.
1
At the time of purchase, the BLUETOOTH standby function is deactivated.
*
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Help Guide
Wireless Speaker
ULT FIELD 5
Using the BLUETOOTH standby (auto power on) function
When the BLUETOOTH standby function is activated, the speaker turns on automatically by operating a BLUETOOTH
device, and starts the BLUETOOTH connection.
At the time of purchase, the BLUETOOTH standby function is deactivated.
Before operating the speaker, note the following:
The BLUETOOTH standby function is activated only while the speaker is connected to an AC outlet by a USB PD
compatible AC adaptor. While the speaker is running only on power from the rechargeable built-in battery, the
BLUETOOTH standby function is deactivated.
When the BLUETOOTH standby function is activated, the (power) indicator lights up in orange while the speaker
is turned off.
Pair the speaker with a BLUETOOTH device in advance. If pairing information is not stored in the speaker, such as
when the speaker is used for the first time after purchase, the speaker will not enter the BLUETOOTH standby mode.
To deactivate the BLUETOOTH standby function
In step 3 above, disable [Bluetooth Standby].
Related Topic
Charging the speaker
Turning the power on
About the indicators
Turn on the speaker.
You hear the notification sound from the speaker, and the (power) indicator on the speaker lights up in white.
1
Start the “Sony | Sound Connect” app on your smartphone.
2
Enable [Bluetooth Standby].
3
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Help Guide
Wireless Speaker
ULT FIELD 5
Charging a USB device such as a smartphone or iPhone
You can charge a USB device, such as a smartphone or iPhone, by connecting it to the speaker via USB.
Note
While the speaker is supplying power to the other device, the Automatic Power Off function is turned off.
Depending on the USB device, the speaker may be charged by supplying power from the USB device. In this case, the speaker
does not supply power to the USB device. Disconnect the USB cable.
Turning off the speaker stops power supply to the connected USB device.
When the voice guidance says “Low Battery” and the CHARGE indicator starts flashing slowly, the built-in battery is running low
and needs to be charged. While in this state, the speaker may not be capable of supplying power to other devices and may
automatically turn off.
Do not charge the speaker's built-in battery in places where the speaker is likely to have water splashed on it. The supplied
accessories and the connectors of this speaker (USB, AUDIO IN) are neither waterproof nor dustproof.
After you disconnect the USB cable from the speaker, be sure to close the cap securely. The cap plays a very important role in
maintenance of the waterproof and dustproof performance.
Related Topic
Charging the speaker
Turning the power on
Automatic Power Off (power saving) function
Connect a USB device, such as a smartphone or an iPhone, to the DC IN/OUT port (USB Type-C) on the
speaker with a commercially available USB cable.
1
Turn on the speaker.
You hear the notification sound from the speaker, the (power) indicator on the speaker lights up in white, and the
speaker starts supplying power to the connected USB device for battery charging.
2
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Help Guide
Wireless Speaker
ULT FIELD 5
Automatic Power Off (power saving) function
If any of the following conditions continues for about 15 minutes, the speaker will automatically turn off to conserve the
power of the rechargeable built-in battery.
At the time of purchase, the Automatic Power Off function is set to on.
When the speaker is in BLUETOOTH mode
No operation on the speaker.
The connected BLUETOOTH device is not playing music (audio), nor is it being operated.
When the speaker is in AUDIO IN mode
No operation on the speaker.
No music (sound) is playing on an audio device connected to the AUDIO IN jack or the music (sound) volume of an
audio device connected to the AUDIO IN jack is extremely small.
Hint
You can turn on or off the Automatic Power Off function by using the “Sony | Sound Connect” app.
Note
While the Automatic Power Off function is deactivated, the speaker does not automatically turn off if the speaker is not used or
music or audio is not playing for a certain period of time, thus more power is consumed.
While the speaker is supplying power to the other device, the Automatic Power Off function is turned off.
Turning on/off the Automatic Power Off function
Related Topic
What you can do with the “Sony | Sound Connect” app
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Turn on the speaker.
1
Press and hold the (play) button and CONNECT button on the speaker simultaneously for about 5
seconds.
When the Automatic Power Off function is turned off, the (power) indicator on the speaker flashes 3 times in
orange.
When the Automatic Power Off function is turned on, the (power) indicator on the speaker flashes twice in
orange.
2
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Help Guide
Wireless Speaker
ULT FIELD 5
Using the speaker with less power consumption of the rechargeable battery
(STAMINA)
Reduce the power consumed while the speaker is running on the rechargeable built-in battery so you can use the
speaker for a longer period of time.
To use STAMINA
At the time of purchase, the STAMINA power option is set to off.
On the “Sony | Sound Connect” app, set [STAMINA] to on.
While the STAMINA power option is set to on, the lighting function and the sound effects, including the ULT POWER
SOUND, are set to off.
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Help Guide
Wireless Speaker
ULT FIELD 5
Turning on/off the speaker’s light (Lighting function)
The speaker lights up with the music to liven up the atmosphere. At the time of purchase, the lighting function is set to on.
To turn on (light on)/turn off (light off) the lighting function
Press the LIGHT button behind the cap on the rear side of the speaker to turn on/off the lighting function.
Hint
By using the “Lighting Mode” function on the “Sony | Sound Connect” app, you can turn on/off the lighting function or switch the
lighting mode to suit your mood or the situation.
Note
When the speaker's light seems bright or glaring, turn up the room lights or turn off the lighting function.
Be sure to close the cap completely after using the LIGHT button.
The cap plays a very important role in maintenance of the waterproof and dustproof performance.
When the lighting function is turned on, the STAMINA power option will automatically turn off.
Related Topic
Turn on the speaker.
You hear the notification sound from the speaker, and the (power) indicator on the speaker lights up in white.
The speaker lights up.
1
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Help Guide
Wireless Speaker
ULT FIELD 5
How to make wireless connections to BLUETOOTH devices
You can enjoy music with the speaker wirelessly by using your BLUETOOTH device’s BLUETOOTH function.
Pairing
Pairing is the process required to mutually register the information on BLUETOOTH devices to be connected wirelessly.
To use multiple BLUETOOTH devices in combination with the speaker, pairing is required for each device you want to
connect.
Perform the pairing operation on both the speaker and the device.
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 speaker using the
methods necessary for each device.
For details about pairing and connection operations, see the related topics below.
Related Topic
Connecting to BLUETOOTH devices easily with the “Sony | Sound Connect” app via a BLUETOOTH connection
Pairing and connecting with BLUETOOTH devices
Connecting with a computer via a BLUETOOTH connection (Windows
®
)
Connecting with a computer via a BLUETOOTH connection (Mac)
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Help Guide
Wireless Speaker
ULT FIELD 5
Connecting to BLUETOOTH devices easily with the “Sony | Sound Connect” app via a
BLUETOOTH connection
Launch the “Sony | Sound Connect” app on your Android smartphone/iPhone to connect the speaker to a smartphone or
iPhone.
Hint
When pairing a second or subsequent device, you can place the speaker into pairing mode with the “Sony | Sound Connect” app.
Note
The connection with some smartphones and iPhone devices may become unstable when connecting using the “Sony | Sound
Connect” app. In that case, follow the procedures in “Pairing and connecting with BLUETOOTH devices” to connect to the
speaker.
Related Topic
How to make wireless connections to BLUETOOTH devices
Pairing and connecting with BLUETOOTH devices
Connecting with a computer via a BLUETOOTH connection (Windows
®
)
Connecting with a computer via a BLUETOOTH connection (Mac)
What you can do with the “Sony | Sound Connect” app
Installing the “Sony | Sound Connect” app
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Help Guide
Wireless Speaker
ULT FIELD 5
Pairing and connecting with BLUETOOTH devices
Pairing is the process required to mutually register the information on BLUETOOTH devices to be connected wirelessly.
To use multiple BLUETOOTH devices in combination with the speaker, perform the following pairing procedure for each
device.
The pairing information of the BLUETOOTH devices is stored on the speaker when the speaker is turned off.
Before operating the speaker, be sure to do the following:
Place the BLUETOOTH device within 1 m (3.2 ft) of the speaker.
Connect the speaker to an AC outlet via a USB PD compatible AC adaptor. Or charge the built-in battery sufficiently.
To avoid any sudden loud sound output from the speaker immediately after pairing, turn down the volume of both the
BLUETOOTH device and the speaker or stop music playback.
Depending on the BLUETOOTH device, the volume of the device may be synchronized with the speaker volume
when music playback starts after a BLUETOOTH connection is established between the BLUETOOTH devices and
the speaker.
Prepare the operating instructions supplied with the BLUETOOTH device for reference.
Turn on the speaker.
1
Check the status of the (BLUETOOTH) indicator on the speaker.
When the indicator is double flashing
2
27
When the speaker is paired with a BLUETOOTH device for the first time after purchase or after it has been
initialized (the speaker has no pairing information), it will automatically enter pairing mode when it is turned on.
Proceed to step 4.
When the indicator is flashing slowly
The speaker is searching for a BLUETOOTH device.
To pair the speaker with a second or subsequent BLUETOOTH device (when the speaker has pairing
information of other BLUETOOTH devices), proceed to step 3.
To reconnect the speaker with one of the BLUETOOTH devices that have been paired with the speaker before,
proceed to step 4.
The speaker will automatically be connected just by turning on the BLUETOOTH function on the BLUETOOTH
device.
Depending on the BLUETOOTH device, the speaker may be reconnected with the device right after it is turned
on. For details, refer to the operating instructions supplied with your BLUETOOTH device.
When the indicator stays lit
28
The speaker has been connected to the BLUETOOTH device.
To connect to other BLUETOOTH devices, follow one of the procedures below.
To pair the speaker with a second or subsequent BLUETOOTH device (when the speaker has pairing
information of other BLUETOOTH devices), proceed to step 3.
To reconnect the speaker with one of the BLUETOOTH devices that have been paired with the speaker before,
proceed to step 4. The speaker will automatically be connected just by turning on the BLUETOOTH function on
the BLUETOOTH device.
Press the (BLUETOOTH) button on the speaker.
You hear voice guidance (Pairing) from the speaker and the (BLUETOOTH) indicator on the speaker starts double
flashing (pairing mode).
3
Perform the pairing procedure on the BLUETOOTH device to detect the speaker.
When a list of detected devices appears on the display of the BLUETOOTH device, select “ULT FIELD 5.”
If a passkey
*
is required on the display of the BLUETOOTH device, enter “0000.”
4
The passkey may be called a “passcode,” “PIN code,” “PIN number,” or “password.”
*
Make the BLUETOOTH connection from the BLUETOOTH device.
When the BLUETOOTH connection is established, you hear the notification sound from the speaker and the activity
of the
(BLUETOOTH) indicator on the speaker changes from flashing to lit.
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29
Hint
As long as the BLUETOOTH function is activated on a BLUETOOTH device that has previously been connected with the speaker,
the speaker is reconnected with the device right after the speaker is turned on.
The above instructions on the BLUETOOTH device are provided as an example. For details, refer to the operating instructions
supplied with the BLUETOOTH device.
With the “Sony | Sound Connect” app, you can establish/disconnect BLUETOOTH connections, unpair BLUETOOTH devices,
and more.
You can connect the speaker concurrently with up to 2 BLUETOOTH devices. (Multipoint connection)
Note
The pairing mode of the speaker is released after about 5 minutes and the (BLUETOOTH) indicator flashes slowly. However,
when the speaker has no pairing information, such as at the factory settings, the pairing mode is not released. If the pairing mode
is released before finishing the process, repeat from step 3.
The passkey of the speaker is “0000.” If a passkey besides “0000” is set on the BLUETOOTH device, pairing cannot be done with
the speaker.
Once the 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.
The speaker is already paired with 8 devices and another device is to be paired.
The speaker can be paired with up to 8 devices. When a new device is paired in addition to 8 paired devices, the pairing
information of the earliest device connected via a BLUETOOTH connection is replaced by the information of the new one.
The pairing information with the speaker has been deleted from the BLUETOOTH device.
The speaker is initialized.
All pairing information will be deleted. If you initialize the speaker, it may not be able to connect your BLUETOOTH device. In
this case, erase the pairing information of the speaker on your BLUETOOTH device, and then perform the pairing procedure
again.
When an audio cable is connected to the speaker’s AUDIO IN jack while the speaker is connected to a BLUETOOTH device via a
BLUETOOTH connection, sound from the BLUETOOTH device is not output from the speaker. To listen to music from the
BLUETOOTH device, disconnect the audio cable.
The speaker can be paired with multiple devices, but can only play music from one paired device at a time.
When using the Stereo Pair function or the Party Connect function, you cannot use the multipoint connection capability.
If the BLUETOOTH connection is not established, repeat from step 3.
30
Help Guide
Wireless Speaker
ULT FIELD 5
Connecting with a computer via a BLUETOOTH connection (Windows
®
)
Pairing is the process required to mutually register the information on BLUETOOTH devices to be connected wirelessly.
To use multiple BLUETOOTH devices in combination with the speaker, perform the following pairing procedure for each
device.
The pairing information of the BLUETOOTH devices is stored on the speaker when the speaker is turned off.
Supported operation systems
Windows 11, Windows 10
Do the following before starting.
Place your computer within 1 m (3.2 ft) of the speaker.
Connect the speaker to an AC outlet via a USB PD compatible AC adaptor. Or charge the built-in battery sufficiently.
Prepare the operating instructions supplied with the computer for reference.
To avoid any sudden loud sound output from the speaker immediately after pairing, turn down the volume of both the
computer and the speaker or stop music playback.
Set the speaker of your computer to on.
If the speaker of your computer is set to (mute), sound does not output on the BLUETOOTH speaker.
When the speaker of your computer is set to on:
Turn on the speaker.
1
Check the (BLUETOOTH) indicator on the speaker for activity.
When the indicator is double flashing
2
32
When the speaker is paired with a BLUETOOTH device for the first time after purchase or after it has been
initialized (the speaker has no pairing information), it will automatically enter pairing mode when it is turned on.
Proceed to step 4.
When the indicator is flashing slowly
The speaker is searching for BLUETOOTH connections.
To pair the speaker with a second or subsequent BLUETOOTH device (when the speaker has pairing
information of other BLUETOOTH devices), proceed to step 3.
To reconnect the speaker with one of the BLUETOOTH devices that have been paired with the speaker before,
proceed to step 6.
The speaker will automatically be connected with the computer just by turning on the BLUETOOTH function on
the computer.
Depending on the BLUETOOTH device, the speaker may be reconnected with the device right after it is turned
on. For details, refer to the operating instructions supplied with your BLUETOOTH device.
When the indicator stays lit
33
The speaker is already connected with one of the BLUETOOTH devices.
To connect the speaker with another BLUETOOTH device, do either of the following:
To pair the speaker with a second or subsequent BLUETOOTH device (when the speaker has pairing
information of other BLUETOOTH devices), proceed to step 3.
To reconnect the speaker with one of the BLUETOOTH devices that have been paired with the speaker before,
proceed to step 6.
The speaker will automatically be connected with the computer just by turning on the BLUETOOTH function on
the computer.
Press the (BLUETOOTH) button on the speaker.
You hear voice guidance (Pairing) from the speaker and the (BLUETOOTH) indicator on the speaker starts double
flashing (pairing mode).
3
Wake the computer up if the computer is in standby (sleep) or hibernation mode.
4
Register the speaker to the computer.
On Windows 11
Click the [Start] button, then [Settings].
Click [Bluetooth & devices].
5
34
Click the [Bluetooth] switch to turn on the BLUETOOTH function, and then click [Add device].
Click [Bluetooth].
Select [ULT FIELD 5].
If a passkey* is required, enter “0000.”
If [ULT FIELD 5] does not appear, perform the operation again from step 3.
The passkey may be called a “passcode,” “PIN code,” “PIN number,” or “password.”
*
35
After pairing, the BLUETOOTH connection establishes automatically and [Connected music] or [Connected
voice, music] will be displayed on the screen. Proceed to step 7.
On Windows 10
Click the [Start] button, then [Settings].
Click [Devices].
Click the [Bluetooth & other devices] tab, click the [Bluetooth] switch to turn on the BLUETOOTH function, and
then click [Add Bluetooth or other device].
Click [Bluetooth].
Select [ULT FIELD 5].
36
If a passkey
*
is required, enter “0000.”
If [ULT FIELD 5] does not appear, perform the operation again from step 3.
After pairing, the BLUETOOTH connection establishes automatically and [Connected music] or [Connected
voice, music] will be displayed on the screen. Proceed to step 7.
The passkey may be called a “passcode,” “PIN code,” “PIN number,” or “password.”
*
Select the speaker on the computer.
On Windows 11
Click the [Start] button, then [Settings].
Click [Bluetooth & devices].
Select [ULT FIELD 5] and click [Connect].
The icon on the screen may look different from what you actually see.
When a BLUETOOTH connection is established, [Connected music] or [Connected voice, music] will be
displayed on the screen. Proceed to step 7.
On Windows 10
Click the [Start] button, then [Settings].
6
37
Hint
The above instructions on the computer are provided as an example. For details, refer to the operating instructions supplied with
your computer. In addition, not all the computers are tested and found compatible with the above procedure and the procedure is
not applicable to home-built computers.
With the “Sony | Sound Connect” app, you can establish/disconnect BLUETOOTH connections, unpair BLUETOOTH devices,
and more.
You can connect the speaker concurrently with up to 2 BLUETOOTH devices. (Multipoint connection)
Note
The pairing mode of the speaker is released after about 5 minutes and the (BLUETOOTH) indicator flashes slowly. However,
when the speaker has no pairing information, such as at the factory settings, the pairing mode is not released. If the pairing mode
is released before finishing the process, repeat from step 3.
Once BLUETOOTH devices are paired, there is no need to pair them again, except in the following cases:
Click [Devices].
Select [ULT FIELD 5] under [Audio] on the [Bluetooth & other devices] tab, and then click [Connect].
The icon on the screen may look different from what you actually see.
When a BLUETOOTH connection is established, [Connected music] or [Connected voice, music] will be
displayed on the screen. Proceed to step 7.
Follow the on-screen instructions to establish a BLUETOOTH connection.
When the BLUETOOTH connection is established, you hear the notification sound from the speaker and the activity
of the (BLUETOOTH) indicator on the speaker changes from flashing to lit.
If the connection attempt fails, repeat the procedure from step 3.
7
38
Pairing information has been deleted after repair, etc.
The speaker is already paired with 8 devices and another device is to be paired.
The speaker can be paired with up to 8 devices. When a new device is paired in addition to 8 paired devices, the pairing
information of the earliest device connected via a BLUETOOTH connection is replaced by the information of the new one.
The pairing information with the speaker has been deleted from the BLUETOOTH device.
The speaker is initialized.
All pairing information will be deleted. If you initialize the speaker, it may not be able to connect your computer. In this case,
erase the pairing information of the speaker on your computer, and then perform the pairing procedure again.
The speaker can be paired with multiple devices, but can only play music from one paired device at a time.
The passkey of the speaker is “0000.” If a passkey besides “0000” is set on the BLUETOOTH device, pairing cannot be done with
the speaker.
When an audio cable is connected to the speaker’s AUDIO IN jack while the speaker is connected to a BLUETOOTH device via a
BLUETOOTH connection, sound from the BLUETOOTH device is not output from the speaker. To listen to music from the
BLUETOOTH device, disconnect the audio cable.
When using the Stereo Pair function or the Party Connect function, you cannot use the multipoint connection capability.
Related Topic
Connecting the speaker concurrently with 2 BLUETOOTH devices (multipoint connection)
Listening to music of a device via a BLUETOOTH connection
Terminating the BLUETOOTH connection (After use)
5-064-354-11(1) Copyright 2025 Sony Corporation
39
Help Guide
Wireless Speaker
ULT FIELD 5
Connecting with a computer via a BLUETOOTH connection (Mac)
Pairing is the process required to mutually register the information on BLUETOOTH devices to be connected wirelessly.
To use multiple BLUETOOTH devices in combination with the speaker, perform the following pairing procedure for each
device.
The pairing information of the BLUETOOTH devices is stored on the speaker when the speaker is turned off.
Supported operation systems
macOS (version 12.7 or later)
Do the following before starting.
Place your computer within 1 m (3.2 ft) of the speaker.
Connect the speaker to an AC outlet via a USB PD compatible AC adaptor. Or charge the built-in battery sufficiently.
Prepare the operating instructions supplied with the computer for reference.
To avoid any sudden loud sound output from the speaker immediately after pairing, turn down the volume of both the
computer and the speaker or stop music playback.
Set the speaker of your computer to on.
If the speaker of your computer is set to (mute), sound does not output on the BLUETOOTH speaker.
When the speaker of your computer is set to on:
Turn on the speaker.
1
Check the (BLUETOOTH) indicator on the speaker for activity.
When the indicator is double flashing
2
40
When the speaker is paired with a BLUETOOTH device for the first time after purchase or after it has been
initialized (the speaker has no pairing information), it will automatically enter pairing mode when it is turned on.
Proceed to step 4.
When the indicator is flashing slowly
The speaker is searching for BLUETOOTH connections.
To pair the speaker with a second or subsequent BLUETOOTH device (when the speaker has pairing
information of other BLUETOOTH devices), proceed to step 3.
To reconnect the speaker with one of the BLUETOOTH devices that have been paired with the speaker before,
proceed to step 4.
The speaker will automatically be connected with the computer just by turning on the BLUETOOTH function on
the computer.
Depending on the BLUETOOTH device, the speaker may be reconnected with the device right after it is turned
on. For details, refer to the operating instructions supplied with your BLUETOOTH device.
When the indicator stays lit
41
The speaker is already connected with one of the BLUETOOTH devices.
To connect the speaker with another BLUETOOTH device, do either of the following:
To pair the speaker with a second or subsequent BLUETOOTH device (when the speaker has pairing
information of other BLUETOOTH devices), proceed to step 3.
To reconnect the speaker with one of the BLUETOOTH devices that have been paired with the speaker before,
proceed to step 4.
The speaker will automatically be connected with the computer just by turning on the BLUETOOTH function on
the computer.
Press the (BLUETOOTH) button on the speaker.
You hear voice guidance (Pairing) from the speaker and the (BLUETOOTH) indicator on the speaker starts double
flashing (pairing mode).
3
Search for the speaker on the computer.
Click [ (System Preferences)] - [Bluetooth] in the taskbar on the right-bottom of the screen.
4
42
Select [ULT FIELD 5] from the Bluetooth screen, then click [Pair].
Follow the on-screen instructions to establish a BLUETOOTH connection.
When the BLUETOOTH connection is established, you hear the notification sound from the speaker and the activity
of the (BLUETOOTH) indicator on the speaker changes from flashing to lit.
If the connection attempt fails, repeat the procedure from step 3.
5
Click the speaker icon in the top-right of the screen and select [ULT FIELD 5] from [Output Device].
You can enjoy playing back music, etc. from your computer.
6
43
Hint
The above instructions on the computer are provided as an example. For details, refer to the operating instructions supplied with
your computer. In addition, not all the computers are tested and found compatible with the above procedure and the procedure is
not applicable to home-built computers.
With the “Sony | Sound Connect” app, you can establish/disconnect BLUETOOTH connections, unpair BLUETOOTH devices,
and more.
You can connect the speaker concurrently with up to 2 BLUETOOTH devices. (Multipoint connection)
Note
The pairing mode of the speaker is released after about 5 minutes and the (BLUETOOTH) indicator flashes slowly. However,
when the speaker has no pairing information, such as at the factory settings, the pairing mode is not released. If the pairing mode
is released before finishing the process, repeat from step 3.
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.
The speaker is already paired with 8 devices and another device is to be paired.
The speaker can be paired with up to 8 devices. When a new device is paired in addition to 8 paired devices, the pairing
information of the earliest device connected via a BLUETOOTH connection is replaced by the information of the new one.
The pairing information with the speaker has been deleted from the BLUETOOTH device.
The speaker is initialized.
All pairing information will be deleted. If you initialize the speaker, it may not be able to connect your computer. In this case,
erase the pairing information of the speaker on your computer, and then perform the pairing procedure again.
The speaker can be paired with multiple devices, but can only play music from one paired device at a time.
The passkey of the speaker is “0000.” If a passkey besides “0000” is set on the BLUETOOTH device, pairing cannot be done with
the speaker.
When an audio cable is connected to the speaker’s AUDIO IN jack while the speaker is connected to a BLUETOOTH device via a
BLUETOOTH connection, sound from the BLUETOOTH device is not output from the speaker. To listen to music from the
BLUETOOTH device, disconnect the audio cable.
When using the Stereo Pair function or the Party Connect function, you cannot use the multipoint connection capability.
Related Topic
Connecting the speaker concurrently with 2 BLUETOOTH devices (multipoint connection)
Listening to music of a device via a BLUETOOTH connection
Terminating the BLUETOOTH connection (After use)
44
5-064-354-11(1) Copyright 2025 Sony Corporation
45
Help Guide
Wireless Speaker
ULT FIELD 5
Connecting the speaker concurrently with 2 BLUETOOTH devices (multipoint
connection)
While the speaker is connected concurrently with 2 BLUETOOTH devices via BLUETOOTH connections, you can do the
following:
Switching the music playback source between 2 devices
You can switch the music playback source from one device to the other without reestablishing the BLUETOOTH
connection.
Connecting the speaker concurrently with 2 devices via BLUETOOTH connections
If an audio cable is connected to the AUDIO IN jack, disconnect it.
While an audio cable is connected to the AUDIO IN jack, music will not be output from the BLUETOOTH device.
1
Connect the speaker with the first BLUETOOTH device.
For details about the BLUETOOTH connection procedure, see one of the following that is applicable to your device.
Connecting to BLUETOOTH devices easily with the “Sony | Sound Connect” app via a BLUETOOTH connection
Pairing and connecting with BLUETOOTH devices
Connecting with a computer via a BLUETOOTH connection (Windows
®
)
Connecting with a computer via a BLUETOOTH connection (Mac)
2
While keeping the speaker connected with the first BLUETOOTH device, press the (BLUETOOTH) button
on the speaker.
You hear voice guidance (Pairing) from the speaker and the (BLUETOOTH) indicator on the speaker starts double
flashing (pairing mode).
3
46
Changing the BLUETOOTH devices in multipoint connection
While keeping the speaker connected with 2 devices in multipoint connection, you can attempt to connect another device
via a BLUETOOTH connection.
When you operate the speaker and the third device in an attempt to establish a BLUETOOTH connection, the
BLUETOOTH connection with one of the 2 devices used for the previous music playback is retained and the
BLUETOOTH connection with the other device is disconnected. Then, a BLUETOOTH connection is established
between the speaker and the third device.
Music playback while the speaker is connected with 2 devices in multipoint connection
When you operate the speaker to play music, music starts playing on one of the devices in multipoint connection that
was used for the previous playback.
To play music on the other (second) device in multipoint connection, operate the second one to start music playback.
Depending on the condition, you may still hear music playing on the same (first) device from the speaker after you
operate the second device to start playback. In such a case, stop the playback on the first one. Then, you can listen
to music playing on the second one.
Hint
Operate the second BLUETOOTH device to search for the speaker.
4
Follow the on-screen instructions to establish a BLUETOOTH connection.
When the BLUETOOTH connection is established, you hear the notification sound from the speaker and the activity
of the (BLUETOOTH) indicator on the speaker changes from flashing to lit.
5
47
As long as the BLUETOOTH function is activated on a BLUETOOTH device that has previously been connected with the speaker,
the speaker is reconnected with the device right after the speaker is turned on.
With the “Sony | Sound Connect” app, you can establish/disconnect BLUETOOTH connections, unpair BLUETOOTH devices,
and more.
Note
When using the Stereo Pair function or the Party Connect function, you cannot use the multipoint connection capability.
Depending on the BLUETOOTH device, you may not be able to use the multipoint connection capability.
The multipoint connection cannot be disabled.
Related Topic
Connecting to BLUETOOTH devices easily with the “Sony | Sound Connect” app via a BLUETOOTH connection
Pairing and connecting with BLUETOOTH devices
Connecting with a computer via a BLUETOOTH connection (Windows
®
)
Connecting with a computer via a BLUETOOTH connection (Mac)
5-064-354-11(1) Copyright 2025 Sony Corporation
48
Help Guide
Wireless Speaker
ULT FIELD 5
Listening to music of a device via a BLUETOOTH connection
You can enjoy listening to music of a BLUETOOTH device and operate it by the speaker via a BLUETOOTH connection if
it supports the following BLUETOOTH profiles.
A2DP (Advanced Audio Distribution Profile)
Enables you to enjoy high-quality audio contents wirelessly.
AVRCP (Audio Video Remote Control Profile)
Enables you to adjust the volume and operate to play, pause or skip to the beginning of the next/current track.
Operations may vary depending on the BLUETOOTH device. Refer also to the operating instructions supplied with the
BLUETOOTH device.
Note
Make sure beforehand that the volume on the BLUETOOTH device and speaker are set to a moderate level to avoid sudden loud
sound output from the speaker.
Depending on the BLUETOOTH device, adjusting the volume of the speaker may not be possible on the BLUETOOTH device
while playback on the device is stopped/paused.
If an audio cable is connected to the AUDIO IN jack, disconnect it.
While an audio cable is connected to the AUDIO IN jack, music will not be output from the BLUETOOTH device.
Hint
By using the “Sony | Sound Connect” app, you can play music from a device connected via a BLUETOOTH connection
through the speaker, even while another device is connected to the AUDIO IN jack.
1
Connect the speaker with the BLUETOOTH device.
When the BLUETOOTH connection is established, you hear the notification sound from the speaker and the activity
of the (BLUETOOTH) indicator on the speaker changes from flashing to lit.
2
Start playback on the BLUETOOTH device.
3
49
Hint
As long as the speaker is connected to an AC outlet by a USB PD compatible AC adaptor, the speaker's built-in battery is capable
of charging itself even while music playback from the speaker is in progress. Depending on the type or specifications of the USB
PD compatible AC adaptor or the usage of the speaker, however, it may take a long time before charging completes. When you
intend to use the speaker while charging the battery, turn down the speaker volume, or turn off the speaker and let the battery
fully charge itself before using the speaker.
The speaker supports content protection by the SCMS-T method. You can listen to music (or audio) from the smartphone or
mobile phone, which supports the SCMS-T method, through the speaker.
When you set the volume to the maximum or minimum level on the speaker, the
(power) indicator flashes 3 times.
Adjust the volume by pressing the –/+ (volume) buttons on the speaker or operating the BLUETOOTH
device.
When you press the –/+ (volume) buttons on the speaker or adjust the volume on the BLUETOOTH device, the
(power) indicator on the speaker flashes once or 3 times.
Depending on the BLUETOOTH device you are using, the (power) indicator on the speaker may not flash even if
you adjust the volume on the BLUETOOTH device.
Press and hold the –/+ (volume) buttons for rapid adjustments.
During playback, you can use the (play) button on the speaker to perform the following operations.
Pause
Press the (play) button during playback to pause. Press it again to cancel pause.
Skip to the beginning of the next track
Press the (play) button twice quickly during playback.
Skip to the beginning of the current or previous track
*
Press the
(play) button 3 times quickly during playback.
4
The above operations vary depending on the BLUETOOTH device in use.
*
50
Pressing and holding the (play) button for about 5 seconds makes the speaker play the music track stored for demonstration
purposes. To disable this feature, press the (play) button once again.
Note
If the communication condition is poor, the BLUETOOTH device may react incorrectly to the operations on the speaker.
While music playback is in progress on a BLUETOOTH device, do not connect a device to the AUDIO IN jack. Connecting a
device to the AUDIO IN jack automatically places the speaker into AUDIO IN mode and you cannot hear music from any
BLUETOOTH device.
When using in a place with a high temperature, the volume may decrease to protect the built-in battery.
When the built-in battery is running low, the maximum speaker volume may decrease.
Depending on the BLUETOOTH device, it may be necessary to adjust the volume or set the audio output setting on the
connected device.
Noise or sound interruption may occur depending on the BLUETOOTH device connected with the speaker, the communication
environment or the usage environment.
Related Topic
Charging the speaker
Terminating the BLUETOOTH connection (After use)
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51
Help Guide
Wireless Speaker
ULT FIELD 5
Selecting the quality for music playback via a BLUETOOTH connection (Codec)
The “Prioritize Sound Quality” and “Prioritize Stable Connection” preferences are available on the speaker for the
BLUETOOTH connection quality. The “Prioritize Sound Quality” preference provides compatibility not only with SBC but
also with AAC and LDAC for music playback of high sound quality, whereas the “Prioritize Stable Connection” preference
enables music playback via more stable BLUETOOTH connections. At the time of purchase, the “Prioritize Sound
Quality” preference is selected.
Prioritize Sound Quality (default setting): Optimal codec is automatically selected from AAC, LDAC, and SBC.
Prioritize Stable Connection: SBC is selected.
Hint
Turn on the speaker.
You hear the notification sound from the speaker, and the
(BLUETOOTH) indicator on the speaker flashes
*
in
blue.
1
If the BLUETOOTH device that has previously been connected with the speaker is located nearby, the speaker may be connected
automatically with the device. In such a case, the (BLUETOOTH) indicator lights up in blue.
*
Change the BLUETOOTH connection quality.
When using the buttons of the speaker
Press and hold the (play) button and the (BLUETOOTH) button simultaneously for about 2 seconds.
When the setting is changed to the “Prioritize Stable Connection” preference, the (power) indicator on the
speaker flashes 3 times in white.
When the setting is changed to the “Prioritize Sound Quality” preference, the (power) indicator on the speaker
flashes twice in white.
When the speaker is connected with BLUETOOTH devices, all the connections are automatically disconnected
and reestablished, and then the preference turns effective.
When using the “Sony | Sound Connect” app
Start the “Sony | Sound Connect” app.
Select either of the codec preferences through [Bluetooth Connection Quality]: [Prioritize Sound Quality] or
[Prioritize Stable Connection].
2
52
As long as the speaker is connected to an AC outlet by a USB PD compatible AC adaptor, you can change the BLUETOOTH
connection quality while the speaker is turned off as well.
When using the Stereo Pair function or the Party Connect function, the codec automatically switches to SBC.
Note
While the “Prioritize Sound Quality” preference is selected, noise or sound interruption may occur depending on the setting of
your BLUETOOTH device and ambient conditions. In such a case, change the BLUETOOTH connection quality to the “Prioritize
Stable Connection” preference.
Related Topic
Using the BLUETOOTH standby (auto power on) function
Supported codecs
What you can do with the “Sony | Sound Connect” app
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53
Help Guide
Wireless Speaker
ULT FIELD 5
Supported codecs
A codec is an audio coding algorithm used for wirelessly transmitting audio via BLUETOOTH connections.
The speaker supports the following 3 codecs for music playback via an A2DP connection: SBC, AAC, and LDAC™.
SBC
This is an abbreviation for Subband Codec.
SBC is the standard audio coding technology used by BLUETOOTH devices.
AAC
This is an abbreviation for Advanced Audio Coding.
AAC is mainly used by Apple products such as iPhone that can provide a higher sound quality than that of SBC.
LDAC
LDAC is an audio coding technology developed by Sony that enables transmission of High-Resolution (Hi-Res) Audio
contents, even via BLUETOOTH connections.
Unlike other BLUETOOTH compatible coding technologies such as SBC, it operates without any down-conversion of
High-Resolution Audio contents
*1
.
It allows approximately 3 times more data
*2
than those other technologies to be transmitted over a BLUETOOTH
wireless network with unprecedented sound quality, employing efficient coding and optimized packetization.
When music in one of the above codecs is transmitted from a connected device, the speaker switches to that codec
automatically and plays back the music.
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
Selecting the quality for music playback via a BLUETOOTH connection (Codec)
5-064-354-11(1) Copyright 2025 Sony Corporation
Excluding DSD format contents.
*1
In comparison with SBC when the bitrate of 990 kbps (96/48 kHz) or 909 kbps (88.2/44.1 kHz) is selected.
*2
54
Help Guide
Wireless Speaker
ULT FIELD 5
Terminating the BLUETOOTH connection (After use)
When you finish playing music with the BLUETOOTH device, perform any of the following operations to terminate the
BLUETOOTH connection.
When the BLUETOOTH connection is disconnected, you hear the notification sound from the speaker.
Turn off the BLUETOOTH function on the BLUETOOTH device.
For details, refer to the operating instructions supplied with the device.
Turn off the BLUETOOTH device.
Turn off the speaker.
Hint
When using the Stereo Pair function, if you turn off one speaker, the other speaker is automatically turned off. The BLUETOOTH
connection between them is disconnected.
When you finish playing music, the BLUETOOTH connection may terminate automatically depending on the BLUETOOTH
device.
Related Topic
Turning the power off
Automatic Power Off (power saving) function
What you can do with the “Sony | Sound Connect” app
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55
Help Guide
Wireless Speaker
ULT FIELD 5
Turning on or off the BLUETOOTH function
You can connect to the speaker from a paired BLUETOOTH device when the speaker’s BLUETOOTH function is set to
on.
At the time of purchase, this setting is set to on.
Hint
With the device previously connected via a BLUETOOTH connection, the speaker is reconnected when its BLUETOOTH function
turns on as long as the BLUETOOTH function of the device remains active.
Note
You cannot perform the following operations when the BLUETOOTH function is set to off:
Pair and/or connect with BLUETOOTH device.
Use the “Sony | Sound Connect” app.
5-064-354-11(1) Copyright 2025 Sony Corporation
Press and hold the – (volume) button and the (BLUETOOTH) button on the speaker for about 5 seconds.
The (BLUETOOTH) indicator on the speaker turns off and the BLUETOOTH function is set to off.
When you press and hold the – (volume) button and the (BLUETOOTH) button simultaneously for about 5
seconds once again, the (BLUETOOTH) indicator flashes and the BLUETOOTH function turns on.
1
56
Help Guide
Wireless Speaker
ULT FIELD 5
Listening to music of a portable audio device, etc. through a wired connection
You can listen to music from a portable audio device or similar device through the speaker by connecting the device with
a commercially available audio cable.
Note
Before establishing a connection between the speaker and a portable audio device, turn down the volume of the speaker and the
device to avoid any sudden loud sound output from the speaker.
Connect a device to the AUDIO IN jack on the speaker with a commercially available audio cable.
For connection, use an audio cable with a stereo mini plug (no resistance)
*
at both ends.
1
If you use an audio cable (with stereo mini plugs) with significant resistance, the volume may be lower. Therefore, make sure you use a
cable (with stereo mini plugs) without resistance.
*
Turn on the speaker.
You hear the notification sound from the speaker, and the (power) indicator on the speaker lights up in white.
2
Turn on and start playback on the connected device.
3
57
Hint
When you cannot hear the sound, raise the volume on the connected device.
By using the “Sony | Sound Connect” app, you can play music from a device connected via a BLUETOOTH connection through
the speaker, even while another device is connected to the AUDIO IN jack.
Note
While an audio cable is plugged to the AUDIO IN jack, priority is given to the audio output through the AUDIO IN jack and audio
output from the BLUETOOTH device is disabled. Depending on the state of the BLUETOOTH connection, the (BLUETOOTH)
indicator lights or flashes in blue. This, however, does not indicate a malfunction.
When connecting a portable audio device to the AUDIO IN jack and playing music, you cannot use the buttons on the speaker to
perform operations such as pause, skip to the beginning of the next track, and skip to the beginning of the current track.
Do not use the AUDIO IN jack in places where the speaker is likely to have water splashed on it. The supplied accessories and
the connectors of this speaker (USB, AUDIO IN) are neither waterproof nor dustproof.
Be sure to close the cap completely after disconnecting the audio cable from the speaker.
The cap plays a very important role in maintenance of the waterproof and dustproof performance.
5-064-354-11(1) Copyright 2025 Sony Corporation
Adjust the volume to a moderate level on the connected device.
If the volume is adjusted by operations on the connected portable audio device, the (power) indicator on the
speaker will not flash.
4
Press the –/+ (volume) buttons on the speaker to adjust the volume.
When you press the –/+ (volume) buttons to adjust the volume, the (power) indicator on the speaker flashes once
or 3 times.
5
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Help Guide
Wireless Speaker
ULT FIELD 5
Enjoying switching the sound effects
You can enjoy switching the sound effects on the speaker.
Enjoying enhanced deep bass sound (ULT button)
You can take either of the following procedures for setup. At the time of purchase, the ULT POWER SOUND setting is
turned on.
Press the ULT button on the speaker.
Each time you press the ULT button, the setting switches from ULT1, ULT2, and off.
Each time the setting is changed, you hear the notification sound from the speaker, and the ULT button lights up or
lights out.
ULT1: Emphasizes deep bass sound.
ULT2: Emphasizes the sense of power.
Off: Turns off the ULT POWER SOUND setting.
Use the “Sony | Sound Connect” app.
On the “Sony | Sound Connect” app, tap [Sound Effect], then select one of [Off], [ULT1], or [ULT2].
Hint
By using the “Sony | Sound Connect” app, you can turn on or off the notification sound when pressing the ULT button.
Adjusting the equalizer setting to your preference (CUSTOM)
On the “Sony | Sound Connect” app, tap [Sound Effect], then select [CUSTOM].
Tap [CUSTOM EQ], and then adjust the equalizer setting to suit your preference.
Automatically adjusting to the optimal sound according to the environment (Sound Field
Optimization)
This proprietary microphone sensing technology detects noises around the speaker while playing music to automatically
make adjustments to optimize sound. At the time of purchase, Sound Field Optimization is set to on.
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To change the Sound Field Optimization setting
On the “Sony | Sound Connect” app, change the [Sound Field Optimization] setting.
Note
In some cases, the surrounding noise may prevent the sound from being optimized.
When using the Stereo Pair function or the Party Connect function, the setting for Sound Field Optimization is turned off.
When the sound effects, such as the ULT POWER SOUND, are enabled, the STAMINA power option will automatically turn off.
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Help Guide
Wireless Speaker
ULT FIELD 5
Listening to music wirelessly with 2 speakers (Stereo Pair function)
To use the Stereo Pair function, 2 units of the ULT FIELD 5 are required. By connecting 2 speakers via a BLUETOOTH
connection, you can enjoy more powerful sound.
One speaker connected via a BLUETOOTH connection plays the sound on the left channel (left side) and the other
speaker connected via another BLUETOOTH connection plays the sound on the right channel (right side) to provide
stereo playback.
Before operating the speaker, make sure of the following:
Update the pre-installed software to the latest version on each and every speaker to connect for the function.
When setting up the speakers for the Stereo Pair function, make sure that the 2 speakers to connect for the function
are located within 1 m (3.2 ft) from each other. Stop music playback if it is in progress.
When playing music, make sure that all of the devices to connect for the function are located within 30 m (98.4 ft) in
your line of sight.
Maximum communication range may shorten under the following conditions.
There is an obstacle such as a person, metal, or wall between the speaker and BLUETOOTH device.
A wireless LAN device is in use near the speaker.
A microwave oven is in use near the speaker.
A device that generates electromagnetic radiation is in use near the speaker.
Turn on both speakers.
The (power) indicator on the speaker lights up.
The (BLUETOOTH) indicator on the speaker flashes slowly.
If the BLUETOOTH device which has been connected before is nearby, the speaker may be connected to the
device automatically, and then the
(BLUETOOTH) indicator may be lit. In this case, turn off the BLUETOOTH
function on the BLUETOOTH device or turn off the BLUETOOTH device.
When the speaker has no pairing information, for example when you use the BLUETOOTH function for the first time
after purchase, the (BLUETOOTH) indicator on the speaker keeps double flashing in blue.
1
On either one of the speakers, press and hold the
(BLUETOOTH)/ ST PAIR (Stereo Pair) button for
about 2 seconds.
2
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You hear the notification sound and the (BLUETOOTH) indicator and the ST PAIR (Stereo Pair) indicator on the
speaker flash slowly. In about 5 seconds, you will hear the notification sound from the speaker again and the ST
PAIR (Stereo Pair) indicator will stop flashing and stay lit.
On the other speaker, press and hold the (BLUETOOTH)/ ST PAIR (Stereo Pair) button for about 2
seconds.
You hear the notification sound and the (BLUETOOTH) indicator and the ST PAIR (Stereo Pair) indicator on the
speaker flash slowly.
3
Check the state of the indicator on each of the 2 speakers.
When the speakers are connected by the Stereo Pair function, you hear voice guidance (Left/Right) from the
speaker, then the ST PAIR (Stereo Pair) indicators on both speakers stay lit and the (BLUETOOTH) indicator on
the second speaker turns off.
Hint
When the 2 speakers are immediately connected by the Stereo Pair function, the (BLUETOOTH) indicator and the ST
PAIR (Stereo Pair) indicator may not flash and the ST PAIR (Stereo Pair) indicator may light instead.
Set up the second speaker within 1 minute. If you do not set it up within 1 minute, the setting of the first speaker will be
canceled.
4
Operate the speaker of which the (BLUETOOTH) indicator is flashing to establish a BLUETOOTH
connection with a BLUETOOTH device.
5
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To terminate the Stereo Pair function
Press and hold the (BLUETOOTH)/ ST PAIR (Stereo Pair) button on one of the speakers for about 2 seconds until
you hear the notification sound.
The ST PAIR (Stereo Pair) indicator on the speaker turns off.
Hint
If any other BLUETOOTH device(s), such as a BLUETOOTH mouse or BLUETOOTH keyboard, is connected to the
BLUETOOTH device that is connected to the speaker, there may be distorted sound or noise in the speaker output. In this case,
terminate the BLUETOOTH connection between the BLUETOOTH device and other BLUETOOTH device(s).
When using the Stereo Pair function, the codec automatically switches to SBC.
Turning off the speakers does not turn off the Stereo Pair function. When one of the speakers is turned back on, it attempts to
establish a connection for the Stereo Pair function. To use the Stereo Pair function, turn on the other speaker within 1 minute.
When the BLUETOOTH standby function remains active
*
on both of the speakers, however, turning on either of the speakers
automatically turns on the other and establish a connection for the Stereo Pair function between the speakers.
Note
While the speaker is in AUDIO IN mode, you cannot use the Stereo Pair function.
Connecting an audio device, such as portable audio device, to the AUDIO IN jack on the speaker automatically places the
speaker into AUDIO IN mode and turns off the Stereo Pair function.
After you restart or initialize either of the speakers while the Stereo Pair function is activated, be sure to press the
(BLUETOOTH)/ ST PAIR (Stereo Pair) button on the other speaker to terminate the Stereo Pair function. If you continue to
use the speaker without terminating the Stereo Pair function, you will have a problem, such as a failure to establish a
BLUETOOTH connection or a sound interruption.
While the Stereo Pair function is activated, any attempt, which is made from the connected BLUETOOTH device, to start the
second speaker fails.
When the BLUETOOTH connection is established, you hear the notification sound from the speaker and the activity
of the (BLUETOOTH) indicator on the speaker changes from flashing to lit.
Start playback on the BLUETOOTH device, and adjust the volume to an adequate level.
6
Press the –/+ (volume) buttons on one of the speakers to adjust the volume.
Volume adjustment of one speaker is reflected in the other.
For stereo playback, the speaker with the lit (BLUETOOTH) indicator is set to the left channel (left side).
7
The BLUETOOTH standby function is activated only while the speaker is connected to an AC outlet by a USB PD compatible AC adaptor.
*
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Help Guide
Wireless Speaker
ULT FIELD 5
Enjoying wireless playback using multiple speakers (Party Connect function)
You can connect multiple speakers (up to 100 speakers) compatible with the Party Connect function via BLUETOOTH
connections and enjoy music playback.
Devices compatible with the Wireless Party Chain function are not applicable for connection.
For information about devices compatible with the Party Connect function, refer to the following URL:
https://www.sony.net/partyconnect-dvc/
Before operating the speaker, make sure of the following:
When setting up the speakers for the Party Connect function, make sure that all of the speakers to connect for the
function are located within 1 m (3.2 ft). Stop music playback if it is in progress.
When playing music, make sure that all of the devices to connect for the function are located within 30 m (98.4 ft) in
your line of sight.
Maximum communication range may shorten under the following conditions.
There is an obstacle such as a person, metal, or wall between the speaker and BLUETOOTH device.
A wireless LAN device is in use near the speaker.
A microwave oven is in use near the speaker.
A device that generates electromagnetic radiation is in use near the speaker.
Hint
Update the pre-installed software to the latest version on each and every speaker to be connected via the Party Connect function.
Speakers that require the “Sony | Music Center” app to use the Party Connect function cannot connect to ULT FIELD 5 using the
“Sony | Music Center” app. To connect, update the software of the speakers to the latest version, and you will be able to connect
to ULT FIELD 5 using the speaker buttons. For details, refer to the Help Guide for the speakers.
Set up the first speaker.
The following operation is an example of setting ULT FIELD 5 as the first speaker. Refer to the operating
instructions supplied with the device you are using to set up other devices compatible with the Party Connect
function.
Press the (power) button on the speaker.
The (BLUETOOTH) indicator on the speaker flashes slowly.
If the BLUETOOTH device which has been connected before is nearby, the speaker may be connected to the
device automatically, and then the (BLUETOOTH) indicator may be lit.
When the speaker has no pairing information, for example when you use the BLUETOOTH function for the first
time after purchase, the (BLUETOOTH) indicator keeps double flashing in blue.
Connect the BLUETOOTH device to the speaker via a BLUETOOTH connection.
When the BLUETOOTH connection is established, you hear the notification sound from the speaker and the
activity of the
(BLUETOOTH) indicator on the speaker changes from flashing to lit.
1
65
Press the CONNECT button on the speaker.
You hear the notification sound from the speaker, and the (BLUETOOTH) indicator and the CONNECT
indicator on the speaker flash slowly. In about 5 seconds, you will hear the notification sound from the speaker
again, and the CONNECT indicator will stop flashing and stay lit. While a connection for the Party Connect
function is being established, the activity of the (BLUETOOTH) indicator changes from lit to flashing.
Connect a second speaker.
The following operation is an example of connecting ULT FIELD 5 as the second speaker. Refer to the operating
instructions supplied with the device you are using to connect other devices compatible with the Party Connect
function.
Press the (power) button on the speaker.
Press the CONNECT button on the speaker.
You hear the notification sound from the speaker, and the (BLUETOOTH) indicator and the CONNECT
indicator on the speaker flash slowly. When the speaker is connected to the first speaker, the (BLUETOOTH)
indicator turns off and the CONNECT indicator stops flashing and stays lit.
Hint
Connect the second speaker within 1 minute. After 1 minute or more, the speaker setting is canceled.
2
Connect a third or more speakers.
To connect additional speakers, repeat step 2.
3
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To terminate the Party Connect function
To terminate all connections and exit the Party Connect function
On the speaker with the lit (BLUETOOTH) indicator (the speaker set up as the first one), press and hold the
CONNECT button until you hear the notification sound from the speaker and the CONNECT indicator turns off.
Hint
Connecting an audio device, such as a portable audio device, to the AUDIO IN jack on the speaker with the lit
(BLUETOOTH) indicator (the speaker set up as the first one) automatically places the speaker into AUDIO IN mode and
terminates the Party Connect function.
To terminate only 1 speaker
On a speaker where you want to terminate the Party Connect function (a speaker set up as the second or
subsequent one), press and hold the CONNECT button until you hear the notification sound from the speaker and the
CONNECT indicator turns off.
Hint
Connecting an audio device, such as a portable audio device, to the AUDIO IN jack on a speaker where you want to
terminate the Party Connect function (a speaker set up as the second or subsequent one) automatically places the speaker
into AUDIO IN mode and terminates the Party Connect function on that particular speaker.
Hint
The lights and the ULT button on the speaker light up differently depending on the model that is set up as the first speaker.
When using the Party Connect function, the codec automatically switches to SBC.
Hint
When connecting a third or more speakers, connect each one within 30 seconds of connecting the previous speaker. After
30 seconds or more, the speaker cannot be connected.
If you want to add another speaker after finishing the settings (after 30 seconds or more), press the CONNECT button on
the first speaker, then do step 2.
When a connection for the Party Connect function is established, the CONNECT indicators on all the speakers stay
lit. Then, the activity of the (BLUETOOTH) indicator on the first speaker changes from flashing to lit.
Start playback on the connected BLUETOOTH device and adjust the volume.
The same music is played from all speakers.
When adjusting the volume on the BLUETOOTH device or the speaker connected with the BLUETOOTH device
(the speaker set up as the first one), the volumes of all speakers are automatically adjusted. For other speakers (the
second or later speaker set), you can also adjust the volume on each other.
4
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Note
When watching movies using the Party Connect function, there may be a gap between video and audio.
When the speaker is in AUDIO IN mode, you cannot use the Party Connect function.
Related Topic
How to keep the software up-to-date (for comfortable use of the speaker)
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Help Guide
Wireless Speaker
ULT FIELD 5
What you can do with the “Sony | Sound Connect” app
While the smartphone, on which the “Sony | Sound Connect” app is installed, and the speaker are connected via a
BLUETOOTH connection, the operations listed below are available.
Operations that can be performed on a speaker with the “Sony | Sound Connect” app
Updating the speaker software
Specifying the Notification & Voice Guide settings
Selecting the Bluetooth Connection Quality (Prioritize Sound Quality/Prioritize Stable Connection)
Turning off the speaker
Placing/bringing the speaker into/out of Battery Care mode
Activating/deactivating the Bluetooth Standby function
Specifying the Automatic Power Off function settings
Turning on/off the STAMINA power option
Changing the devices in multipoint connection
Viewing the version of the speaker software
Viewing the state of the BLUETOOTH connection between the speaker and the smartphone
Viewing the BLUETOOTH connection codec
Viewing the remaining power of the speaker's rechargeable battery
Viewing the state of the Stereo Pair function and the Party Connect function
Setting the sound quality and adjusting the Equalizer
Starting/pausing music playback or skipping to the beginning of the previous/current/next track
Adjusting the volume for music playback
Lighting function
Switching playback between the devices connected via the BLUETOOTH connection and the AUDIO IN jack
Easy pairing
Party function (DJ Control/Party Light)
Hint
What you can control with the “Sony | Sound Connect” app varies depending on the connected device. The specifications and
design of the app may change without notice.
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Related Topic
Turning on/off the speaker’s light (Lighting function)
Connecting the speaker concurrently with 2 BLUETOOTH devices (multipoint connection)
Listening to music of a device via a BLUETOOTH connection
Selecting the quality for music playback via a BLUETOOTH connection (Codec)
Listening to music of a portable audio device, etc. through a wired connection
Enjoying switching the sound effects
Listening to music wirelessly with 2 speakers (Stereo Pair function)
Enjoying wireless playback using multiple speakers (Party Connect function)
Installing the “Sony | Sound Connect” app
How to keep the software up-to-date (for comfortable use of the speaker)
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70
Help Guide
Wireless Speaker
ULT FIELD 5
Installing the “Sony | Sound Connect” app
Related Topic
What you can do with the “Sony | Sound Connect” app
5-064-354-11(1) Copyright 2025 Sony Corporation
Download the “Sony | Sound Connect” app, and install the app on your smartphone.
For models of countries and regions excluding Chinese mainland:
The “Sony | Sound Connect” app can be downloaded from the Google Play store or App Store.
For models of Chinese mainland:
The “Sony | Sound Connect” app can be downloaded from the Sony Style or App Store.
1
When the installation is complete, start the “Sony | Sound Connect” app.
2
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Help Guide
Wireless Speaker
ULT FIELD 5
Accessing support information from the “Sony | Sound Connect” app
You can access the latest support information from the “Sony | Sound Connect” app.
5-064-354-11(1) Copyright 2025 Sony Corporation
Select [Help] on the “Sony | Sound Connect” app screen to open the support page.
1
Select the desired item.
2
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Help Guide
Wireless Speaker
ULT FIELD 5
How to keep the software up-to-date (for comfortable use of the speaker)
By having the latest update applied to the speaker software using the “Sony | Sound Connect” app, you can enjoy new
features, as well as troubleshoot some issues.
Be sure to keep the speaker software up-to-date to use the speaker.
For detailed information about the latest updates to the speaker software and how to apply an update, visit the support
website and see notifications and the relevant information.
While [Download software automatically] is activated on the “Sony | Sound Connect” app, updates are automatically
downloaded and transferred to the speaker.
You can apply updates to the speaker software by following the procedure below as well.
Note
When the smartphone, which is used for downloading and transferring updates to the speaker, has other BLUETOOTH devices
connected, keep all the BLUETOOTH devices turned off until the updating process is finished on the speaker. If the devices
connected to the smartphone are devices compatible with the Bluetooth Low Energy standard (including a wearable device and a
smartwatch), the updating process on the speaker software may fail.
If the updating process on the speaker fails to finish, do the following and try again.
On your smartphone, close all the apps except the “Sony | Sound Connect” app.
Charge the batteries of the speaker and your smartphone sufficient enough for the updating process.
Bring the speaker and your smartphone, which is used for downloading and transferring updates to the speaker, as close as
possible with each other.
Move your smartphone away from the vicinity of other wireless LAN and/or BLUETOOTH devices when updating.
Bring your smartphone out of power-saving mode
*
. While in power-saving mode, some smartphones do not let the updating
process finish depending on the version of the operating system.
Related Topic
What you can do with the “Sony | Sound Connect” app
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Download an update from the server to your smartphone on which the “Sony | Sound Connect” app is
installed.
1
Transfer the update from your smartphone to the speaker.
2
Update the speaker software following the on-screen instructions.
3
The mode name varies depending on the smartphone in use.
*
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Help Guide
Wireless Speaker
ULT FIELD 5
About the indicators
CHARGE indicator (orange)
Note
As long as the speaker is connected to an AC outlet by a USB PD compatible AC adaptor, the speaker's built-in battery is capable
of charging itself even while the speaker is turned on.
Depending on the usage of the speaker, however, it may take a long time before charging completes. It is recommended that you
turn off the speaker before battery charging.
Depending on the type or specifications of the USB PD compatible AC adaptor, if you use the speaker at a loud volume, the
remaining power of the rechargeable built-in battery may decrease or the speaker may turn off even while the speaker is
connected to an AC outlet by the USB PD compatible AC adaptor. This, however, does not indicate a malfunction. If such a case
occurs, turn off the speaker and let the battery fully charge itself before you use the speaker.
If the ambient temperature is extremely low or high, the built-in battery will stop charging itself for safety reasons. It may also stop
charging if charging continues for a long period of time. If such a case occurs, bring the temperature up or down to a battery
charging temperature between 5 °C and 35 °C (41 °F and 95 °F), disconnect and connect the USB cable, and then let the battery
charge itself once again.
(power) indicator
Unlit Battery charging is complete.
Lit Battery charging is in progress.
Slow flashing The built-in battery is running at 20% or less and needs to be charged.
Flashes 3 times and
turns off
If the indicator flashes 3 times and then the speaker turns off after the speaker is turned on, the
built-in battery is empty and needs to be charged.
Unlit The speaker is turned off.
Lit (white) The speaker is turned on.
Lit (orange) The speaker is turned off. The BLUETOOTH standby function is activated.
74
(BLUETOOTH) indicator (blue)
Flashes
(white or
orange)
Each time you press the –/+ (volume) buttons, the indicator flashes once in white.
When you operate the –/+ (volume) buttons and the volume is set at the lowest (0) or highest (50)
level, the indicator flashes 3 times in white.
When the (play) button and the CONNECT button are pressed and held simultaneously for
about 5 seconds and the Automatic Power Off function is turned off, the indicator flashes 3 times
in orange.
When the (play) button and the CONNECT button are pressed and held simultaneously for
about 5 seconds and the Automatic Power Off function is turned on, the indicator flashes twice in
orange.
When the (play) button and the (BLUETOOTH) button are pressed and held simultaneously
for about 2 seconds and the “Prioritize Stable Connection” preference is selected for the
BLUETOOTH connection quality, the indicator flashes 3 times in white.
When the (play) button and the (BLUETOOTH) button are pressed and held simultaneously
for about 2 seconds and the “Prioritize Sound Quality” preference is selected for the BLUETOOTH
connection quality, the indicator flashes twice in white.
Flashes
slowly (white)
An update is being applied to the built-in software.
Double
flashing
(orange)
An abnormality in the interior temperature or in the built-in rechargeable battery is detected. Turn off
the speaker, disconnect the USB cable, wait for a while, and then restart the speaker. For details, see
Notes on charging.
Triple flashing
(orange)
An abnormality, such as an invalid button operation or disconnection of a BLUETOOTH connection, is
detected (an electric circuit error). Follow the steps described in Restarting the speaker to restart the
speaker.
Unlit The BLUETOOTH function is not activated on the speaker.
Lit The speaker is connected to a BLUETOOTH device.
Double flashing
The speaker is in pairing mode.
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Multi color indicator (ULT button)
ST PAIR (Stereo Pair) indicator (white)
CONNECT indicator (white)
Related Topic
Parts and controls
What you can do with the “Sony | Sound Connect” app
5-064-354-11(1) Copyright 2025 Sony Corporation
Slow flashing
The speaker is waiting for a BLUETOOTH device to connect to.
Lit The sound mode is set to ULT1 or ULT2.
Unlit The sound mode is set to other than ULT1 or ULT2.
Slow
flashing
The speaker is waiting for a connection for the Stereo Pair function to be established. The indicator
flashes when the connection for the Stereo Pair function fails.
Lit The Stereo Pair function is used on the speaker.
Slow
flashing
The speaker is waiting for a connection for the Party Connect function to be established. The indicator
flashes when the connection for the Party Connect function fails.
Lit
The Party Connect function is used on the speaker. The CONNECT indicators of all speakers connected
for the Party Connect function light up.
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Help Guide
Wireless Speaker
ULT FIELD 5
Precautions
On safety
Refer to the Reference Guide supplied with the speaker.
The nameplate and important information concerning safety are attached in the following locations:
the inner surface of the cap on the rear side of the speaker
On placement
To eliminate the risk of malfunctions, avoid the following locations when placing or leaving this speaker.
A place subject to high temperatures, such as under direct sunlight or lighting equipment, near a heat source, or
in a sauna
Inside a vehicle with the windows closed (especially in summertime)
A place exposed to hot air, such as from a hair dryer
A place subject to excessive dust
A place subject to strong vibration
Place this speaker on a flat, level surface. When placed on a sloped surface, the speaker may fall over or fall off the
surface due to its own vibration, resulting in injuries, malfunctions, or performance degradation.
Depending on the conditions where this speaker is placed, it may fall over or fall off the surface. Do not leave any
valuables near the speaker.
This speaker is not anti-magnetic. Keep objects susceptible to magnetism (recorded tapes, watches, cash cards and
credit cards with magnetic coding, etc.) away from the speaker. When you carry around the speaker, keep this in
mind as well.
Other notes
When placed in an extremely hot or cold environment, the speaker stops battery charging for safety reasons. When
the battery is kept charging itself for an extended period of time, the speaker may stop battery charging as well. In
such a case, make sure that the ambient temperature is within the battery charging temperature range (5 °C - 35 °C
(41 °F - 95 °F)), unplug and plug the USB cable, and then charge the battery all over again.
If you use this speaker for a long time, the temperature of this speaker may rise, but it is not a malfunction.
If you are playing music while the speaker is charging or in a location with high ambient temperatures, the volume
may be automatically adjusted for safety reasons.
Noise or sound interruption may occur depending on the BLUETOOTH device connected with the speaker, the
communication environment or the usage environment.
Even if you do not intend to use the speaker for a long time, charge the battery to its full capacity once every 6
months to maintain its performance.
77
If your skin remains in contact with the light for a long time while the light is turned on, there is a risk of low-
temperature burns. To carry the speaker using the shoulder strap, etc. while it is powered on, turn the light (lighting
function) off.
When the speaker's light seems bright or glaring, turn up the room lights or turn off the lighting function.
If you have any questions or problems concerning this speaker that are not covered in this manual, please consult
Sony support contact or your nearest Sony dealer.
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Help Guide
Wireless Speaker
ULT FIELD 5
Notes on charging
Life span of the built-in lithium ion battery
Even if you do not intend to use the speaker for a long time, charge the built-in battery sufficiently once every 6
months to maintain its performance.
If the speaker is not used for a long time, it may take longer to charge the built-in battery.
The rechargeable built-in battery has a life span. As time passes and the number of times that the built-in battery is
used increases, the capacity of the rechargeable built-in battery slowly decreases. When the amount of time that the
built-in battery can be used seems significantly shorter, despite having been fully charged, contact Sony support
contact or your nearest Sony dealer.
When the amount of time that the built-in battery can be used seems significantly shorter, it could mean that the
rechargeable built-in battery has expired.
The life span of the rechargeable built-in battery differs depending on the usage, environment, and storage method.
Caution
When the speaker detects an abnormality in the interior temperature or in the built-in rechargeable battery, the
(power) indicator (orange) on the speaker starts double flashing.
If an abnormality is detected, disconnect the USB cable, wait for a while, and then restart the speaker (by pressing and
holding the (power) button on the speaker for about 10 seconds). If the problem persists, contact Sony support
contact or your nearest Sony dealer.
Note
Charging time varies depending on built-in battery usage conditions.
Charge the speaker in an ambient temperature between 5 °C and 35 °C (41 °F and 95 °F). Be aware that the room temperature
may fall to 5 °C (41 °F) or lower depending on the season, for example, especially in wintertime.
The speaker becomes warm during charging. This is not a malfunction.
Avoid exposure to rapid temperature change, direct sunlight, mist, sand, dust, or mechanical shock. Also, never leave the speaker
in a car parked in the sun.
79
As long as the speaker is connected to an AC outlet by a USB PD compatible AC adaptor, the speaker's built-in battery is capable
of charging itself even while the speaker is turned on. However, it may take a long time before charging completes depending on
the usage of the speaker. It is recommended that you turn off the speaker before battery charging.
In an extremely cold or hot environment, charging stops for safety. If charging takes a long time, it also makes charging of the
speaker stop. To resolve these issues, disconnect the USB cable from the speaker and connect it again within a battery charging
temperature between 5 °C and 35 °C (41 °F and 95 °F).
If the built-in battery is under a high load during charging, charging stops for safety. In such a case, turn down the volume or stop
the playback.
If you are playing music while the speaker is charging or in a location with high ambient temperatures, the volume may be
automatically adjusted for safety reasons.
Charging from a USB hub is only guaranteed when you use a self-powered USB hub that carries an authorized logo.
Related Topic
Charging the speaker
Restarting the speaker
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Notes on waterproof and dustproof features
On waterproof and dustproof performance of the speaker
The speaker, with the cap fastened securely, has a waterproof specification of IPX7
*1
as specified in “Degree of
protection against water immersion” of the IEC60529 “Ingress Protection Rating (IP Code)”
*3
, and a dustproof
specification of IP6X
*2
as specified in “Degrees of protection against solid foreign objects”
*3
.
Liquids that the waterproof performance specifications apply to
The waterproof performance of the speaker is based on our measurements under the conditions herein described. Note
that malfunctions as a result of water immersion or dust intrusion caused by misuse by the customer are not covered by
the warranty.
To maintain waterproof and dustproof performance
Carefully note the precautions below to ensure proper use of the speaker.
Do not pour high-temperature water or blow hot air from a hair dryer or any other appliance on the speaker directly.
Also never use the speaker in a place subject to high temperatures, such as in a sauna or near a heat source.
Handle the cap on the rear side of the speaker with care. The cap plays a very important role in maintenance of the
waterproof and dustproof performance. When using the speaker, make sure that the cap is closed completely. When
closing the cap, be careful not to allow foreign objects inside. If the cap is not closed completely the waterproof and
dustproof performance may deteriorate and may cause a malfunction of the speaker as a result of water or dust
particles entering the speaker.
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Applicable fresh water, tap water, pool water, salt water
Not
applicable
liquids other than the above (soapy water, water with detergent or bath agents, shampoo, hot spring
water, etc.)
IPX7 equivalency: The speaker has been tested to and maintains its operability when gently submersed in water to a depth of 1 m (3.2 ft) and left
for 30 minutes.
*1
IP6X equivalency: The speaker has been tested to and continues to block dust after stirring for 8 hours in a testing device which contains dust
particles that are up to 75 μm in diameter.
*2
The supplied accessories and the connectors of this speaker (USB, AUDIO IN) are neither waterproof nor dustproof. To reduce the risk of fires or
electric shocks, do not expose the speaker to water or droplets while using any connectors (USB, AUDIO IN).
*3
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How to care for the speaker
You can use the speaker and the shoulder strap more comfortably and for a longer period of time by following the
maintenance procedure below.
If the surface of the speaker gets dirty in the following cases, wash the speaker with fresh water (tap water, etc.)
promptly to remove the dirt. Leaving dirt on its surface may cause the fabric part or the passive radiator section (a) to
discolor or deteriorate, or the speaker to malfunction.
Ex.
When salt, sand, etc. is stuck on the speaker after using it on a beach, pool side, etc.
When the speaker is stained with sweat or foreign substances (sunscreen, suntan oil, etc.)
Leaving the speaker wet causes limescale or mold to develop, resulting in soiling of the speaker. After using the
speaker in wet conditions, it is recommended that you wipe off water droplets all the speaker surfaces and let the
speaker dry in a well-ventilated location.
The sound quality may change when water enters the speaker or passive radiator section of the speaker. It is not
malfunction. Wipe off the moisture on its surface, and put the speaker on a dry soft cloth to drain the collected water
inside the speaker. Then, dry the speaker in an airy place until no moisture remains.
Note
If the surface of the speaker gets dirty, do not use detergent, thinner, benzine, alcohol, etc. to clean the speaker because it will
affect the water repellent function of the fabric part of the speaker.
Especially in cold regions, be sure to wipe off the moisture after using the speaker. Leaving moisture on its surface may cause the
speaker to freeze and malfunction.
If sand grains, etc. enter the fabric, the inside of the storage caps, or other parts of the speaker, remove them carefully. Never use
a vacuum cleaner, etc. on the speaker. It may cause damage of the speaker section or other parts of the speaker.
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About the BLUETOOTH wireless technology
The BLUETOOTH wireless technology is a short-range wireless technology that enables communication between digital
devices, such as smartphones and computers.
Supported version and profiles of the BLUETOOTH standard
A BLUETOOTH profile is a set of functions standardized for every characteristic of BLUETOOTH devices. The speaker
supports the following version and profiles of the BLUETOOTH standard.
Supported BLUETOOTH version:
BLUETOOTH standard, version 5.3
Supported BLUETOOTH profiles:
A2DP (Advanced Audio Distribution Profile): Enables transmission and reception of high-quality music contents.
AVRCP (Audio Video Remote Control Profile): Enables volume adjustment and operations to play/pause music and
skip to the beginning of the next/current track.
Maximum communication range
Use the BLUETOOTH wireless technology between the speaker and a device that are located within about 30 m (98.4 ft)
from each other.
Maximum communication range may shorten under the following conditions.
There is an obstacle such as a person, metal, or wall between the speaker and BLUETOOTH device.
A wireless LAN device is in use near the speaker.
A microwave oven is in use near the speaker.
A device that generates electromagnetic radiation is in use near the speaker.
Frequency band
2.4 GHz band (2.400 0 GHz - 2.483 5 GHz)
Corresponding content protection
SCMS-T
Transmission range (A2DP)
20 Hz - 20 000 Hz (Sampling frequency 44.1 kHz)
Interference from other devices
Because BLUETOOTH devices and wireless LAN (IEEE802.11ax/b/g/n) use the same frequency (2.4 GHz), microwave
interference may occur and result in communication speed deterioration, noise, or invalid connection if the speaker is
used near a wireless LAN device.
Interference to other devices
Microwaves emitting from a BLUETOOTH device may affect the operation of electronic medical devices. Turn off this
speaker 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.
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Note
Depending on the network environment, there may be an interruption at the high bitrate transmission.
To be able to use the BLUETOOTH function, the BLUETOOTH device to be connected requires the same profile as the
speaker’s. Note also that even if the same profile exists, devices may vary in function depending on their specifications.
Due to the characteristic of BLUETOOTH wireless technology, the sound played on the speaker is slightly delayed from the sound
played on the BLUETOOTH device while listening to music.
The speaker supports security capabilities that comply with the BLUETOOTH standard to provide a secure connection when the
BLUETOOTH wireless technology is used, but security may not be enough depending on the setting. Be careful when
communicating using BLUETOOTH wireless technology.
We do not take any responsibility for the leakage of information during BLUETOOTH communication.
A device featuring the BLUETOOTH function is required to conform to the BLUETOOTH standard specified by the Bluetooth SIG,
Inc. and be authenticated. Even if the connected device conforms to the above mentioned BLUETOOTH standard, some devices
may not be connected or work correctly, depending on the features or specifications of the device.
Noise or sound interruption may occur depending on the BLUETOOTH device connected with the speaker, the communication
environment or the usage environment.
A device with a built-in radio or tuner cannot be connected to the speaker via a BLUETOOTH connection since noise may occur in
broadcasts.
Locate the speaker farther away from a TV, radio or tuner, etc. since noise may occur in broadcasts.
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Licenses
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 access the following URL and read the contents of the license.
https://rd1.sony.net/help/speaker/sl/25/
Use of the Made for Apple badge means that an accessory has been designed to connect specifically to the Apple
product(s) identified in the badge and has been certified by the developer to meet Apple performance standards.
Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards.
Please note that the use of this accessory with an Apple product may affect wireless performance.
Network services, content and the (operating system and) software of this product may be subject to individual terms
and conditions and changed, interrupted or discontinued at any time and may require fees, registration and credit
card information.
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Trademarks
Google, Android and Google Play are trademarks of Google LLC.
Apple, the Apple logo, iPhone, iPod, iPod touch, Mac, and macOS are trademarks of Apple Inc., registered in the U.S.
and other countries and regions.
App Store is a service mark of Apple Inc., registered in the U.S. and other countries and regions.
IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license.
Microsoft and Windows are registered trademarks or trademarks of Microsoft Corporation in the United States and/or
other countries.
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.
LDAC and LDAC logo are trademarks of Sony Group Corporation or its affiliates.
All other trademarks and registered trademarks are trademarks or registered trademarks of their respective holders. In
this manual, ™ and ® marks are not specified.
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Troubleshooting
If the speaker does not function as expected, try the following steps in order to resolve the issue.
Related Topic
Charging the speaker
Restarting the speaker
Initializing the speaker
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1. Charge the speaker.
2. Restart the device being connected such as your smartphone or computer.
3. Access the Sony support site from the menu of the “Sony | Sound Connect” app to search for the cause
and solution of the issue, or check the support site below.
https://www.sony.net/support/SRS-ULT50/
4. Restart the speaker.
5. Initialize the speaker.
6. Should any problems persist, consult Sony support contact below or your nearest Sony dealer.
https://www.sony.net/support-contact
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Restarting the speaker
In the following cases, among others, press and hold the (power) button on the speaker for about 10 seconds to
restart the speaker.
You cannot operate the speaker after you turn it on.
You cannot operate the speaker after you troubleshoot pairing issues.
The speaker is turned off during the restart process, and then turned back on upon completion of the process.
Note
Restarting the speaker does not delete its pairing information. The pairing information, however, is stored on the speaker when
the speaker is turned off. After pairing the speaker with a new device, turn off the speaker and turn it back on, and then restart the
speaker.
Restarting the speaker may change its volume, function, or sound settings.
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Initializing the speaker
If the speaker fails to operate successfully after you restart it, initialize the speaker to restore its default settings.
While the speaker is turned on, press and hold the (play) button and the ULT button on the speaker until the speaker
turns off (5 seconds or more).
The speaker is initialized. Settings such as volume, etc., are restored to the default settings, and all pairing information is
deleted.
Note
The speaker cannot be initialized while the power is off.
Related Topic
Pairing and connecting with BLUETOOTH devices
Restarting the speaker
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Specifications
Speaker section
Speaker system
2-way, Passive radiator
Speaker
Woofer unit:
Approx. 79 mm × 107 mm (3.2 in × 4.3 in) (1)
Tweeter unit:
Approx. 46 mm (1.9 in) dia. (2)
General
Inputs
AUDIO IN jack (Φ 3.5 mm)
DC OUT
USB Type-C
®
port (for charging the battery of a connected device) (DC 5 V/MAX. 1.5 A)
Power
DC 5 V 3.0 A or DC 9 V 3.0 A (using a commercially-available USB PD compatible AC adaptor capable of feeding in 3.0
A) or, using built-in lithium-ion battery
Power consumption
*
When BLUETOOTH standby mode is set to on: 2 W or less
When BLUETOOTH standby mode is set to off: 0.3 W or less
Operating temperature
–5 °C - +35 °C (23 °F - 95 °F)
Battery charging temperature
5 °C - 35 °C (41 °F - 95 °F)
Dimensions (W × H × D)
Including projecting parts and controls
Approx. 320 mm × 144 mm × 125 mm (12.6 in × 5.7 in × 5.0 in)
Mass (Including battery)
Approx. 3.3 kg (7 lb 5 oz)
Hint
For the time required for charging the built-in rechargeable battery and the built-in battery life while audio playback from a
BLUETOOTH device is in progress, see “Charging the speaker.”
Compatible iPhone/iPod models
iPhone 15 Pro Max, iPhone 15 Pro, iPhone 15 Plus, iPhone 15, iPhone 14 Pro Max, iPhone 14 Pro, iPhone 14 Plus,
iPhone 14, iPhone SE (3rd generation), iPhone 13 Pro Max, iPhone 13 Pro, iPhone 13, iPhone 13 mini, 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, iPod touch (7th generation)
(As of August 2024)
Note
Design and specifications are subject to change without notice.
When using a USB PD compatible AC adaptor capable of delivering DC 9 V 3.0 A.
*
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Refer to the Reference Guide included with your product, which may contain specification information not listed above.
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