Bose ULTRA OPEN EARBUDS User manual

ULTRA OPEN EARBUDS

IMPORTANT SAFETY INSTRUCTIONS
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Please read and keep all safety and use instructions.
Bose Corporation hereby declares that this product is in compliance with the essential requirements
and other relevant provisions of Directive 2014/53/EU and all other applicable EU directive
requirements. The complete declaration of conformity can be found at: www.Bose.com/compliancewww.Bose.com/compliance
This product conforms to all applicable Electromagnetic Compatibility Regulations 2016 and all other
applicable UK regulations. The complete declaration of conformity can be found at:
www.Bose.com/compliancewww.Bose.com/compliance
Bose Corporation hereby declares that this product is in compliance with the essential requirements
per Radio Equipment Regulations 2017 and all other applicable UK regulations. The complete
declaration of conformity can be found at: www.Bose.com/compliancewww.Bose.com/compliance
Important Safety Instructions
Only use aachments/accessories specified by the manufacturer.
Refer all servicing to qualified personnel. Servicing is required when the apparatus has been damaged in any
way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has
been dropped.
WARNINGS/CAUTIONS
• To avoid accidental ingestion, keep the product away from children and pets. The product contains a baery,
and may be hazardous if swallowed. If ingested, seek immediate medical aention. When not in use, store
the product out of reach of children and pets.
• Product is not intended for use by children.
• To avoid hearing damage, do not use your headphones at a high volume. Turn the volume down on your
product before placing the headphones in/on your ears, then turn the volume up gradually until you reach a
comfortable, moderate listening level.
• To avoid hearing damage, do not insert the earbud speaker directly into your ear canal. Wear the earbuds
with the speaker resting on the inner surface of your ear and the barrel behind your ear. For more information
about how to wear the earbuds, see page 13.
• Use of this product while operating a vehicle may be prohibited by law in some locations. Use caution
and follow applicable laws. Stop using this product immediately if it interferes with your ability to remain
aentive or interferes with your ability to hear surrounding sounds, including alarms and warning signals,
while operating a vehicle.
• Use caution if using these headphones while performing any activity that requires your aention. Do not use
the headphones when the inability to clearly hear surrounding sounds may present a danger to yourself or
others, for example while riding a bicycle or walking in or near traic, a construction site, railroad, etc.
• Do NOT submerge the product in water or expose the product to water for extended periods.
• Remove product immediately if you notice heat coming from the product.

IMPORTANT SAFETY INSTRUCTIONS
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Contains small parts which may be a choking hazard. Not suitable for children under age 3.
This product contains magnetic material. Consult your physician on whether this might aect your
implantable medical device.
• Do NOT make unauthorized alterations to this product.
• Keep the product away from fire and heat sources. Do NOT place naked flame sources, such as lighted
candles, on or near the product.
• Use this product only with an agency-approved LPS power supply that meets local regulatory requirements
(e.g., UL, CSA, VDE, CCC).
• The baery provided with this product may present a risk of fire or chemical burn if mishandled, incorrectly
replaced or replaced with an incorrect type.
• If the baery leaks, do not allow the liquid to come in contact with the skin or eyes. If contact is made, seek
medical advice.
• Do not expose products containing baeries to excessive heat (e.g. from storage in direct sunlight, fire or
the like).
• Wipe o sweat from the earbuds and the charging case before charging.
• IPX4 and IPX1 are not permanent conditions, and resistance might decrease as a result of normal wear.

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REGULATORY AND LEGAL INFORMATION
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment o and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving product or antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by Bose Corporation could void the user’s authority to
operate this equipment.
This device complies with part 15 of the FCC Rules and with ISED Canada license-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause
undesired operation.
This device complies with FCC and ISED Canada radiation exposure limits set forth for general population. This
transmier must not be co-located or operating in conjunction with any other antenna or transmier.
FCC ID: A94926L / A94926R | IC: 3232A-926L / 3232A-926R
Case Model: 438926 | Right Earbud Model: 926R | Left Earbud Model: 926L
The earbuds in this system have been certified in accordance with the provisions set out in the Radio Law.
020-230336
020-230337
CAN ICES-3(B)/NMB-3(B)
For Europe: Frequency band of operation 2400 to 2483.5 MHz. | Maximum transmit power less than
20 dBm EIRP.
SAR Information
Earbud Measured
1-g SAR W/kg
Measured
10-g SAR W/kg
Left 0.46 0.18
Right 0.57 0.22
This symbol means the product must not be discarded as household waste, and should be delivered to
an appropriate collection facility for recycling. Proper disposal and recycling helps protect natural
resources, human health and the environment. For more information on disposal and recycling of this
product, contact your local municipality, disposal service, or the shop where you bought this product.
Low-power Radio-frequency Devices Technical Regulations
Without permission granted by the NCC, any company, enterprise, or user is not allowed to change frequency,
enhance transmiing power or alter original characteristic as well as performance to an approved low power
radio-frequency devices. The low power radio-frequency devices shall not influence aircraft security and
interfere legal communications; If found, the user shall cease operating immediately until no interference is
achieved. The said legal communications means radio communications is operated in compliance with the
Telecommunications Management Act. The low power radio-frequency devices must be susceptible with the
interference from legal communications or ISM radio wave radiated devices.

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REGULATORY AND LEGAL INFORMATION
DON’T aempt to remove the rechargeable lithium-ion baery from this product. Contact your local Bose
retailer or other qualified professional for removal.
Please dispose of used baeries properly, following local regulations. Do not incinerate.
R-C-Bos-926L (L)
R-C-Bos-926R (R)
R-R-Bos-438926 (Case)
China Restriction of Hazardous Substances Table
Names and Contents of Toxic or Hazardous Substances or Elements
Toxic or Hazardous Substances and Elements
Part Name Lead
(Pb)
Mercury
(Hg)
Cadmium
(Cd)
Hexavalent
(CR(VI))
Polybrominated
Biphenyl
(PBB)
Polybrominated
diphenylether
(PBDE)
PCBs X O O O O O
Metal Parts X O O O O O
Plastic Parts O O O O O O
Speakers X O O O O O
Cables X O O O O O
This table is prepared in accordance with the provisions of SJ/T 11364.
O: Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for
this part is below the limit requirement of GB/T 26572.
X: Indicates that this toxic or hazardous substance contained in at least one of the homogeneous
materials used for this part is above the limit requirement of GB/T 26572.
Taiwan Restriction of Hazardous Substances Table
Equipment name: Earbuds and Charging Case Type designation: 438926
Restricted substances and its chemical symbols
Unit Lead
(Pb)
Mercury
(Hg) Cadmium (Cd)
Hexavalent
chromium
(Cr+6)
Polybrominated
biphenyls (PBB)
Polybrominated
diphenyl ethers
(PBDE)
PCBs - b b b b b
Metal Parts - b b b b b
Plastic Parts b b b b b b
Speakers - b b b b b
Cables - b b b b b
Note 1: “b” indicates that the percentage content of the restricted substance does not exceed the percentage of reference
value of presence.
Note 2: The “−” indicates that the restricted substance corresponds to the exemption.

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REGULATORY AND LEGAL INFORMATION
Date of Manufacture: The eighth digit in the serial number indicates the year of manufacture; “4” is 2014
or 2024.
China Importer: Bose Electronics (Shanghai) Company Limited, Level 6, Tower D, No. 2337 Gudai Rd. Minhang
District, Shanghai 201100 | EU Importer: Bose Products B.V., Gorslaan 60, 1441 RG Purmerend, The Netherlands
| Mexico Importer: Bose de México S. de R.L. de C.V., Avenida Prado Sur #150, Piso 2, Interior 222 y 223, Colonia
Lomas de Chapultepec V Sección, Miguel Hidalgo, Ciudad de México, C.P. 11000 Phone Number: [phone])
3545 | Taiwan Importer: Bose Limited Taiwan Branch (H.K.), 9F., No.10, Sec. 3, Minsheng E. Road, Zhongshan
Dist. Taipei City 10480, Taiwan Phone Number: [phone] | UK Importer: Bose Limited, Bose House,
Quayside Chatham Maritime, Chatham, Kent, ME4 4QZ, United Kingdom
Output Capacity: 350mAh | IPXX Rating: IPX4 (for the earbuds), IPX1 (for the charging case)
The CMIIT ID is located on the carton.
The Bose Terms of Use apply to this product: worldwide.Bose.com/termsofuseworldwide.Bose.com/termsofuse
License Disclosures: To view the license disclosures that apply to the third-party software packages included
as components of the Bose Ultra Open Earbuds, use the Bose Music app. You can access this information
from the Seings menu.
Apple, the Apple logo, iPad, and iPhone are trademarks of Apple Inc., registered in the U.S. and other countries.
The trademark “iPhone” is used in Japan with a license from Aiphone K.K. App Store is a service mark of
Apple Inc.
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.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of
such marks by Bose Corporation is under license.
Google, Android, and Google Play are trademarks of Google LLC.
Snapdragon Sound is a product of Qualcomm Technologies, Inc. and/or its subsidiaries. Qualcomm,
Snapdragon and Snapdragon Sound are trademarks or registered trademarks of Qualcomm Incorporated.
USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum.
Bose, the Bose Music logo, and SimpleSync are trademarks of Bose Corporation. | Bose Corporation
Headquarters: 1-877-230-5639 | ©2024 Bose Corporation. No part of this work may be reproduced, modified,
distributed, or otherwise used without prior wrien permission.
Please complete and retain for your records
The earbud date code is located on the flat inner surface of the earbud. The model numbers and charging
case serial number are located in the charging case lid.
Serial number: ___________________________________________________________________________
Model number: 438926
Please keep your receipt. Now is a good time to register your Bose product. You can easily do this by going to
worldwide.Bose.com/ProductRegistrationworldwide.Bose.com/ProductRegistration

CONTENTS
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WHAT’S IN THE BOX
Contents ............................................................................................................................................................................. 11
BOSE MUSIC APP SETUP
Download the Bose Music app.................................................................................................................................. 12
Add the earbuds to an existing account ............................................................................................................... 12
HOW TO WEAR
Put on the earbuds......................................................................................................................................................... 13
Check your fit.................................................................................................................................................................... 14
POWER
Power on ............................................................................................................................................................................. 15
Power o............................................................................................................................................................................. 16
EARBUD CONTROLS
Media playback................................................................................................................................................................ 17
Volume functions............................................................................................................................................................ 18
Phone calls......................................................................................................................................................................... 19
Call notifications................................................................................................................................................... 19
Adjust the audio EQ....................................................................................................................................................... 19
SHORTCUTS
Use your shortcut............................................................................................................................................................ 20
Change or disable your shortcut .............................................................................................................................. 20

CONTENTS
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IMMERSIVE AUDIO
Immersive audio seings............................................................................................................................................. 21
Change the immersive audio seing...................................................................................................................... 22
Change the mode ................................................................................................................................................ 22
Use your shortcut................................................................................................................................................. 22
Immersive audio while on a call ................................................................................................................................ 22
Calibrate immersive audio........................................................................................................................................... 22
LISTENING MODES
Modes................................................................................................................................................................................... 23
Change the mode ........................................................................................................................................................... 24
Add or remove modes from the earbuds................................................................................................... 24
DEVICE VOICE CONTROL
Device voice control functions.................................................................................................................................. 25
BATTERY
Charge the earbuds ....................................................................................................................................................... 26
Charge the charging case............................................................................................................................................ 27
Check the earbud baery level................................................................................................................................. 28
While using the earbuds ................................................................................................................................... 28
While charging the earbuds............................................................................................................................. 28
Check the charging case baery level................................................................................................................... 28
Charging time ................................................................................................................................................................... 29
EARBUD AND CHARGING CASE STATUS
Earbud status lights....................................................................................................................................................... 30
Bluetooth® status................................................................................................................................................. 30
Baery, update, and error status................................................................................................................... 30
Charging case status light........................................................................................................................................... 31
Baery, update, and error status................................................................................................................... 31

CONTENTS
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BLUETOOTH CONNECTIONS
Connect using the Bose Music app ........................................................................................................................ 32
Connect using the Bluetooth menu on your device ........................................................................................ 32
Disconnect a device ...................................................................................................................................................... 33
Reconnect to a device .................................................................................................................................................. 34
Reconnect to the most recently-connected device............................................................................. 34
Reconnect to a dierent device .................................................................................................................... 34
Clear the earbud device list........................................................................................................................................ 35
Android™ devices only ................................................................................................................................................. 36
Connect using Fast Pair .................................................................................................................................... 36
Snapdragon Sound™ technology.................................................................................................................. 37
CONNECT BOSE PRODUCTS
Connect to a Bose Smart Speaker or Soundbar................................................................................................ 38
Benefits .................................................................................................................................................................... 38
Compatible products.......................................................................................................................................... 38
Connect using the Bose Music app ............................................................................................................. 39
Reconnect to a Bose Smart Speaker or Soundbar ........................................................................................... 39
SWEAT AND WEATHER RESISTANCE................................................................................................. 40

CONTENTS
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CARE AND MAINTENANCE
Store the earbuds ........................................................................................................................................................... 41
Clean the earbuds and charging case.................................................................................................................... 41
Replacement parts and accessories ...................................................................................................................... 41
Limited warranty.............................................................................................................................................................. 41
Update the earbuds ....................................................................................................................................................... 42
Update the charging case........................................................................................................................................... 42
View the earbud date code......................................................................................................................................... 42
View the charging case serial number................................................................................................................... 42
TROUBLESHOOTING
Try these solutions first................................................................................................................................................. 43
Other solutions................................................................................................................................................................. 43
Reboot the earbuds and charging case ................................................................................................................ 53
Restore the earbuds to factory seings................................................................................................................ 54

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WHAT’S IN THE BOX
CONTENTS
Confirm that the following parts are included:
Bose Ultra Open Earbuds Charging case
USB Type-C® to USB-A cable
NOTE: If any part of your product appears to be missing or damaged, don’t use it.
Visit support.Bose.com/UOEsupport.Bose.com/UOE for troubleshooting articles, videos, and product
repair or replacement.

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BOSE MUSIC APP SETUP
The Bose Music app lets you set up and control the earbuds from any device, such as
a smartphone or tablet.
Using the app, you can manage Bluetooth connections, manage earbud seings,
adjust the audio, choose your voice prompt language, and get any future updates and
new features made available by Bose.
NOTE: If you have already created a Bose account for another Bose product,
see “Add the earbuds to an existing account.”
DOWNLOAD THE BOSE MUSIC APP
1. On your device, download the Bose Music app.
NOTE: If you’re located in Mainland China, download the Bose8app.
BOSE MUSIC
2. Follow the app instructions.
ADD THE EARBUDS TO AN EXISTING ACCOUNT
To add your Bose Ultra Open Earbuds, open the Bose Music app, then add the
earbuds from the product list screen.

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PUT ON THE EARBUDS
1. Hold the barrel-shaped part of the earbud so that the buon is on top and the
R(right) or L(left) marking is facing you.
R/L marking
Barrel
Buon
2. Hook the earbud speaker in your ear, then wrap the barrel around so it rests
behind your ear.
Hook Wrap Rest
Speaker
3. For best sound quality and performance, adjust the earbud so that it's at about a
45° angle on your ear. If it doesn't feel comfortable or secure, slide it up or down
slightly to find the best position for you.
4. Check the fit (see page 14).
5. Repeat steps 1 – 4 to put on the other earbud.
HOW TO WEAR

HOW TO WEAR
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CHECK YOUR FIT
Move your head up and down and side to side to make sure the earbuds are stable
and comfortable. Then, check your fit using a mirror.
PROPER FIT
• The earbud barrel is behind your ear
and the buon is facing upwards.
• The earbud speaker is resting on the
inner surface of your ear and isn't
inserted into your ear canal.
• The earbud sits at about a 45° angle on
your ear, although you can slide it up or
down slightly for comfort.
• The earbud feels comfortable
and secure.
IMPROPER FIT
• The earbud barrel is on the front
side of your ear or the buon is
facing downwards.
• The earbud speaker is inserted into
your ear canal instead of resting on the
inner surface of your ear.
• The earbud is angled downwards
towards your chin or mouth.
• The earbud feels uncomfortable,
pinches your ear, or feels loose
or unstable.

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POWER
POWER ON
Open the charging case.
The earbuds power on. The earbud status lights glow according to the earbud
charging status (see page 30). The charging case status light glows according to
the case baery level (see page 31).
Earbud status lights
Charging case status light
NOTE: When you remove the earbuds from the charging case, close the case to help
preserve the baery life and keep the case free of debris.

POWER
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POWER OFF
1. Place both earbuds in the charging case.
The earbuds disconnect from your device and power o. The earbud status lights
glow according to the earbud charging status (see page 31)
2. Close the case.
The charging case status light glows according to the case baery level
(see page 31).

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EARBUD CONTROLS
A buon is located on the top of the barrel-shaped part of each earbud. The buons
control media playback, volume, phone calls, and your shortcut (see page 20).
Buons
NOTE: You can use either earbud buon to control all functions except for volume.
When controlling volume, the left and right earbud buons have dierent
functions (see page 18).
MEDIA PLAYBACK
CONTROL WHAT TO DO
Play/Pause Press either
earbud buon.
1x
Skip to the
next track
Double-press either
earbud buon.
2x
Skip to the
previous track
Triple-press either
earbud buon.
3x

EARBUD CONTROLS
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VOLUME FUNCTIONS
CONTROL WHAT TO DO
Increase the
volume
Double-press and hold
the right earbud buon.
The volume increases
as you hold the buon.
Release when you reach
the desired volume.
Decrease the
volume
Double-press and hold
the left earbud buon.
The volume decreases
as you hold the buon.
Release when you reach
the desired volume.
TIP: You can also increase or decrease the volume using the volume controls on your
device or in the Bose Music app.

EARBUD CONTROLS
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PHONE CALLS
CONTROL WHAT TO DO
Answer a call Press either
earbud buon.
1x
End/Decline
a call
Double-press either
earbud buon.
2x
Answer a
second
incoming call
and put the
current call
on hold
Press either
earbud buon.
1x
Decline a
second
incoming call
and stay on
current call
Double-press either
earbud buon.
2x
Call notifications
A voice prompt announces incoming callers and call status.
To stop call notifications, disable voice prompts using the Bose Music app. You can
access this option from the Seings menu.
ADJUST THE AUDIO EQ
To adjust the bass, midrange, and treble, use the Bose Music app. You can access
these options from the product control screen.
NOTE: At high volumes, the eects of these adjustments may be reduced to
avoid distortion.

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SHORTCUTS
A shortcut enables you to quickly and easily access one of the following functions:
• Cycle through modes (see page 23)
• Cycle through immersive audio seings (see page 21)
• Reconnect to a device (see page 34)
• Use your device voice control (see page 25)
NOTE: By default, cycling through modes is set as your shortcut on both earbuds.
USE YOUR SHORTCUT
Press and hold either earbud buon.
CHANGE OR DISABLE YOUR SHORTCUT
To change or disable a shortcut or to assign a dierent shortcut to each earbud,
use the Bose Music app. To access this option, tap Shortcut on the product
control screen.
NOTE: If you assign a dierent shortcut to each earbud, you must press and hold the
appropriate earbud buon. If you place one of the earbuds in the case, you
can only use the shortcut assigned to the other earbud.