SHOKZ T921
User Guide
OPENFIT 2+
App
Download the Shokz App
The Shokz App allows you to switch EQ modes, connect to
two devices simultaneously, enable Dolby Audio, customize
buttons, upgrade firmware, find earbuds, adjust prompt
sound volume, and more. Download the app now to simplify
your Shokz experience.
*Apple and the Apple logo are trademarks of Apple Inc.,
registered in the U.S. and other countries. Google Play is a
trademark of Google LLC.
CATALOGUE
Catalogue
IN THE BOX
WEAR AND USE
03
05
Pairing
Earbud Diagram
Wearing
06
07
08
10
Charging Case
INDICATOR LED
17
Charging Case Indicator LED
18
OPERATION AND CONTROL
12
Volume Control
Music Control
Single Earbud Control
13
14
15
16
Call Control
POWER SOURCE
20
Wired Charging of the Charging Case
Wireless Charging of the Charging Case
On/Off/Standby
21
23
24
25
Charging the Earbuds
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ADDITIONAL FEATURES
26
Auto Connect
MultiPoint Pairing
Find my Earbuds
27
29
30
31
Resetting
31
Dolby Audio
MAINTENANCE
32
Cleaning
33
34
IP Rating
AFTER-SALES SERVICE
35
Serial Number Location
36
37
Warranty
CATALOGUE
In the Box
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In the Box
Do not use the product if any of the above items are missing or
the product is damaged. Please contact your retailer, or reach
out to us immediately.
(See Page �� : After-Sales Service)
Warranty Card * �
Warranty
OpenFit �+
Packaging Box * �
USB-C
Charging Cable * �
OpenFit �+
Charging Case * �
OpenFit �+ True
Wireless Earbuds * �
IN THE BOX
OPENFIT 2+
User Guide * �
User Guide
Legal
Statement * �
Legal
Statement
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Wear and Use
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Earbud diagram
*The touch area for both earbuds is located on the raised areas
on the Shokz logo.
*The microphones are exclusively for voice calls.
EARBUD DIAGRAM
Ear hooks
Touch area
Microphone
Physical buttons
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Charging Case
CHARGING CASE
Charging Case Indicator LED
Wireless Charging Pad
Charging Case
Button
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Pairing
When using for the first time:
Open the charging case to immediately enter Bluetooth pairing
mode, with the indicator light flashing orange
and green.
For subsequent pairings:
�. Place both earbuds into the charging case;
�. Press and hold the button inside the charging case for � sec-
onds until the indicator lights flash orange and green, indicating
that the earbuds have entered pairing mode.
PAIRING
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�. Turn on Bluetooth and select "OpenFit �+ by Shokz." Once
paired, the device will confirm the connection.
PAIRING
Setup
Bluetooth
OpenFit 2+ by Shokz
Connected
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�. Take the earbuds out of the case.
�. Position them above your ears.
Wearing
WEARING
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�. Gently rotate the earbuds backward, allowing the hook to
curl around your ears.
�. You're ready to go.
WEARING
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Operation and
Control
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Music Control
* Operating steps may vary depending on the software. Please refer to actual
usage for accuracy.
Click either physical button while
listening to audio.
Play/Pause music
Double-click either physical
button while listening to audio.
Play next track
Triple-click either physical button
while listening to audio.
Previous song
MUSIC CONTROL
Physical buttons
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Call Control
Click either physical
button during the call.
End a call
Click either physical button.
Answer a call
Double-click either
physical button.
Reject a call
CALL CONTROL
Physical buttons
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Press and hold the left physical
button during music or calls.
Volume down one level
Press and hold the right button
during music or calls.
Volume up one level
# Continuous Volume Control: During music or calls, long-press corre-
sponding earbud until desired volume is reached.
Volume Control
VOLUME CONTROL
Physical buttons
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Single Earbud
Control
Both earbuds are designed for independent use, allowing for
mono music playback or calls. When used individually, each
earbud maintains its respective button functionality.
For music control, please refer to page ��. For call control, refer
to page ��.
SINGLE EARBUD CONTROL
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Indicator LED
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Charging Case
Indicator LED
�. When the earbuds are in the charging case, the indi-
cator displays the earbud battery level.
*Note: When both earbuds are placed in the charging case, the
indicator displays the power level of the earbud with the lower
battery level.
Low battery level
High battery level
When opening, the orange light
goes off after � seconds.
When opening, the green light
goes off after � seconds.
CHARGING CASE INDICATOR LED
Charging Case
lndicator LED
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�. When the earbuds are outside the charging case, the indi-
cator displays the charging case battery level.
Chaging case with
high battery level
Charging case with
low battery level
The green light turns off after � seconds
upon opening or closing the case or press-
ing the charging case button.
The orange light turns off after � seconds
upon opening or closing the case or press-
ing the charging case button.
�.Others
Factory data reset
Pairing
The indicator flashes orange for � seconds.
The indicator flashes orange and green.
�.When connected to an external power supply
Charging completed
Charging
The indicator is solid green.
The indicator is solid orange.
CHARGING CASE INDICATOR LED
Charging Case Indicator LED
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Power Source
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On/Off/Standby
�. On
When the earbuds are placed in the charging case,
opening the case will activate the indicator light and power
on the earbuds.
*Note: Closing the charging case after removing the earbuds
helps preserve battery life and prevents debris from entering
the case.
ON/OFF/STANDBY
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�. Off
When the charging case is closed with both earbuds inside, they
will automatically power off.
�. Standby
When the earbuds are outside the charging case and remain dis-
connected from Bluetooth devices for � minutes, they will enter
standby mode to preserve battery life.
ON/OFF/STANDBY
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Place the earbuds into the charging case until they
magnetically attach. Close the charging case once the
indicator light is on.
*Note:
· The LED on the charging case will show the battery status of the
earbuds in the case. The green light indicates a high battery level
and the orange light indicates a low battery level. If both earbuds
are in the case, the LED shows the power status of the earbud with a
lower battery.
· The earbuds will reach full charge after approximately �� minutes
inside the charging case. Ensure that the charging case has a
sufficient battery level to charge the earbuds.
· At a temperature of ��±�°C (��±�.�°F), after the earbuds play
music until they automatically power off, place them in a fully
charged case—they’ll recharge in about �� minutes. This charging
time is based on Shokz lab tests. Actual results may vary due to
environmental conditions, product features, and usage habits.
Please refer to real-world usage for accuracy.
Charging the
Earbuds
CHARGING THE EARBUDS
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Wired Charging of
the Charging Case
WIRED CHARGING OF THE CHARGING CASE
Connect the USB-C to USB-C charging cable to the charging case
and plug it into a power supply or certified wall charger. A solid
orange light on the charging case indicates that it is currently
charging, while a solid green light indicates that the case is fully
charged.
*Note:
· At a temperature of ��±�°C (��±�.�°F), using a compatible charging
cable, it takes about ��� minutes to fully charge a depleted case or a
case with fully drained earbuds. This charging time is based on Shokz lab
tests. Actual results may vary due to environmental conditions, product
features, and usage habits. Please refer to real-world usage for accuracy.
· The charging case requires approximately ��� minutes to reach full
charge. It operates using the standard �V+/-�% USB voltage. We advise
against using high-voltage power sources to charge the earbuds, as this
may cause damage. Additionally, using third-party charging cables may
result in longer charging times.
· Before charging, ensure that the charging port is dry and free of liquid
residue like sweat. Use a soft, dry cloth to wipe away any moisture or
residue from the charging port.
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Wireless Charging of
the Charging Case
WIRELESS CHARGING OF THE CHARGING CASE
The charging case supports Qi-certified wireless charging.
Please follow these steps for proper charging:
�. Set Up the Charger ‒ Connect your Qi-certified wireless charger
to a power source and ensure it is working properly.
�. Position the Charging Case ‒ Place the case centered on the
wireless charger with the logo facing up, ensuring proper
alignment with the charging contacts.
�. Check the Indicator Light ‒ The orange indicator will stay on
while charging. When it turns solid green, the case is fully
charged.
�. Remove and Use ‒ Once fully charged, remove the case and
use your earbuds as usual.
Charging Time
· At a temperature of ��±�°C (��±�.�°F), a fully depleted
charging case takes approximately � hours to fully charge using a
Qi-certified wireless charger.
· If the case contains fully depleted earbuds, the total charging
time is about � hours.
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Additional
Features
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MultiPoint Pairing
MULTIPOINT PAIRING
*Please update the Shokz App to the latest version in the App
Store. Follow the instructions to update the earbuds firmware to
the latest version. Ensure that Bluetooth is enabled on your pair-
ing device.
�. First connect the earbuds to your phone, and start by
selecting “MultiPoint Pairing” in the Shokz App.
OPENFIT 2+
MultiPoint Pairing
Off
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MULTIPOINT PAIRING
�. On the pop-up page, confirm to open the MultiPoint
Pairing function.
�. Select "Connect to the Second Device" and follow the
instructions to establish a connection with the second device.
�. Your earbuds are now connected to two devices. You can
manage their Bluetooth connections conveniently through the
Shokz App.
MultiPoint Pairing
MultiPoint Pairing
Connect to the Second Device
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�. Enhanced Sound Quality ‒ Dolby Audio improves sound by
delivering crystal-clear audio, rich details, and an immersive sur-
round sound experience for a captivating music and entertain-
ment journey. You can easily toggle Dolby Audio on or off
through the Shokz App.
�. Setup ‒ Ensure your earbuds and mobile phone are connect-
ed, then open the Shokz App.
�. Toggle to Activate ‒ Switch the Dolby Audio toggle to turn it on
or off.
* With Dolby Audio enabled, the earbuds' battery life will be re-
duced by approximately � hours.
Dolby Audio
DOLBY AUDIO
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Auto Connect
�. Once the earbuds are powered on, they'll automatically at-
tempt to connect to the last paired device and emit a beep to
indicate a successful connection.
�. While in use, the earbuds may disconnect from the paired
device due to connection range limitations. If they come back
within range within � minutes, they'll re-establish connection
with the last paired device automatically,
emitting a beep indicating successful reconnection.
�. Should the earbuds re-enter the connectable range after �
minutes, press either physical button to trigger
automatic reconnection.
�. With MultiPoint Pairing enabled, simply press either
physical button to reconnect to both devices.
*Please ensure that the paired devices are within the connection range
(��m) and powered on. Also, make sure that your desired device has
Bluetooth enabled.
AUTO CONNECT
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�. Make sure your earbuds are connected to your phone. Then,
open the Shokz App and choose "Find my Earbuds.
�. Select the earbuds you want to locate from the list that ap-
pears.
�. Select “Ping my left/right earbud". Your earbuds will start
making a loud noise to help you find them.
Find my Earbuds
FIND MY EARBUDS
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Resetting the earbuds will clear the list of paired devices and
reset all settings.
�. Place both earbuds in the charging case.
�. Press and hold the button on the charging case for ��
seconds. The indicator will flash orange for five seconds before
turning off, indicating that the reset is complete. Next, the indica-
tor will flash orange and green, indicating that the earbuds have
entered pairing mode.
Resetting
ESETTING
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Maintenance
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Cleaning
�. Earbuds
· Use a soft, clean, dry cloth to wipe the earbuds.
· When cleaning the earbud mesh, gently brush away dirt and
earwax with a dry cotton swab, then wipe with a soft cloth.
Note:
· Ensure the earbuds are powered off and disconnected from
all devices before cleaning.
· Do not wash the earbuds with water or use ultrasonic cleaning.
· Prevent liquid from entering any openings of the earbuds.
· Do not use abrasive cleaners, high-concentration chemicals,
alcohol, or acetone solvents, as they may cause damage,
deformation, or discoloration.
· Avoid using sharp or abrasive objects.
�. Charging Case
· Use a soft, clean, and dry cloth to wipe the exterior of
the charging case.
· Use a clean, dry, soft brush to remove debris from
the charging interface.
· Gently wipe the charging contact surface inside
the charging case using a clean and dry cotton swab.
Note:
· Ensure the charging case is powered off and disconnected from
all devices before cleaning.
· Avoid using abrasive materials to clean the charging case.
CLEANING
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IP Rating
Note:
· The IP�� dust, sweat, and water-resistant rating applies solely to the
earbuds and does not apply to the charging case.
· The dust, sweat, and water resistance feature is subject to degradation
with regular use.
· Do not immerse the product in water, and avoid prolonged exposure to
wet conditions.
· Do not use the product during activities like swimming, water skiing,
surfing, or other water sports.
· In the event of accidental water exposure, promptly wipe the product
and accessories dry, then allow them to air dry in a cool, ventilated area.
Do not use or charge until completely dry.
Tested under controlled laboratory conditions, the earbud com-
ponents of this product are dust, sweat, and water resistant, at
an IP�� level according to the IEC ����� standard.
IP RATING
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After-Sales
Service
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Serial Number
Location
The product serial number is located on the barcode of the
packaging and warranty card. Additionally, the charging case
includes a serial number printed next to the charging port.
SERIAL NUMBER LOCATION
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Warranty
Your earbuds are covered by a warranty. Visit our website at
https://shokz.com/pages/warranty-return for details of the
limited warranty.
WARRANTY
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