Bose A30 User manual

A30 AVIATION HEADSET

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IMPORTANT SAFETY INSTRUCTIONS
Please read and keep all safety and use instructions.
For more information about your A30 Aviation Headset, visit: support.Bose.com/A30support.Bose.com/A30
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 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
WARNINGS/CAUTIONS
• To reduce the risk of fire or electrical shock, do NOT expose this product to rain, dripping, splashing, or moisture and
do not place liquid filled objects such as vases, on or near the product.
• Do NOT make unauthorized alterations to this product.
• The battery provided with this product may present a risk of fire, explosion or chemical burn if mishandled,
incorrectly replaced or replaced with an incorrect type.
• If the battery 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 batteries to excessive heat (e.g. from storage in direct sunlight, fire or the like).
• Keep batteries out of reach of children.
• Please dispose of used batteries properly, following any local regulations.
• Batteries may cause a fire or chemical burn if mishandled. Do not recharge, disassemble, heat, or incinerate.
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.
NOTE: Damage could occur to avionics equipment by the use of these headsets if equipment was manufactured for
use with 600 Ω headsets only. If in doubt, consult the avionics equipment manufacturer.
Please read and save this guide
Please read this guide carefully. Save this guide for future reference and make it easily accessible for passengers and
third parties who use this headset.
• Switch to an alternate communications method in the event of a headset issue.
In the unlikely event of any headset issue or failure in the passive noise reducing mode, switch to an alternate
communications method and use standard cockpit resource management skills to minimize distractions.
• Use the headset at a moderate volume level.
To avoid hearing damage, use the headset at a comfortable, moderate volume level. Limit the headset volume to
safe levels that do not interfere with your ability to hear informational sounds and warning alarms, such as stall
warnings or gear up, while piloting.

IMPORTANT SAFETY INSTRUCTIONS
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• Turn the headset o if it emits any loud noise.
As with any complex electronic device, it is possible for this headset to fail during operation. Symptoms of failure,
which may include loud tones, distortion, feedback squeals and loss of communications signal in the headset, can
occur in either the Acoustic Noise Cancelling mode (turned on) or in the passive mode (turned o). If the headset
emits any loud noise and the related loss of communications in the Acoustic Noise Cancelling mode, turn o the
power switch. The headset will continue to provide communications in the passive noise-reducing mode. If the
problem persists, see “Troubleshooting” on page 54.
• Be aware of sound dierences while wearing the headset.
With the headset’s active and passive noise reduction, typical aircraft sounds (such as engines, propellers, warning
alarms, and other sound sources) may not sound familiar. Make sure you can hear and recognize these sounds when
using the headset while operating any aircraft.
• Do NOT make phone calls while piloting.
Do not use the headset for telephone calls during flight operations.
• Make sure your aircraft communications system volume control is easily accessible.
This control aects the strength of the communications signal coming into the headset. Make sure you can
understand critical communications even with Acoustic Noise Cancelling mode turned o. In this case, you may
need to turn up the aircraft communications system volume. In passive mode, the volume controls on the control
module will automatically be set to maximum volume. For additional volume control, use the intercom or radio
volume control. If your headset is aircraft powered, connect the headset to the aircraft power sources only as
described in “Aircraft Connectors” on page 34.
• Make sure portable devices do not interfere with the aircraft’s navigation and communication systems.
Reference FAA AC 91.21-1D, or later revision, for installation approval.
It is the pilot’s responsibility to ensure that portable devices do not interfere with the aircraft’s navigation and
communication systems, as well as to determine if the portable device is suitable for use with the headset.
• Use AA (LR06) batteries, alkaline preferred.
Alkaline batteries are recommended for best results. Other battery chemistries may yield dierent results. Battery
life may dier and battery life indication may not be accurate. Properly dispose of used batteries.
• Do NOT repair the headset yourself.
Contact the Bose organization in your country/region for specific care, return and shipping instructions.
Visit: global.Bose.comglobal.Bose.com
• Do not use the headset with a helmet or as part of a crash protection system.
The headset is not intended for such use, and has not been certified for crash protection. Dismantling, reassembly
or modification of the headset, or any part, for use in a helmet or other crash protection system could result in
severe bodily injury and such unauthorized use will void the limited product warranty.
• Do NOT immerse the headset or any parts in water or any other liquid.
See “Clean the headset” on page 48 for cleaning instructions.
• Keep the earcup free of debris.
Proper headset operation requires that the headset acoustic and microphone openings located on the outside of
each earcup are kept free of debris to ensure clear communications. See “Clean the headset” on page 48 for
cleaning instructions.

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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.
La operación de este equipo está sujeta a las siguientes dos condiciones: (1) es posible que este equipo o dispositivo
no cause interferencia perjudicial y (2) este equipo o dispositivo debe aceptar cualquier interferencia, incluyendo la
que pueda causar su operación no deseada.
This device complies with FCC and ISED Canada radiation exposure limits set forth for general population.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
FCC ID: A94429358
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.
Maximum transmit power is below regulatory limits such that SAR testing is not necessary and exempt per
applicable regulations.
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.
Please dispose of used batteries properly, following local regulations. Do not incinerate.

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REGULATORY AND LEGAL INFORMATION
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 transmitting power or alter original characteristic as well as performance to a 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.
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.

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REGULATORY AND LEGAL INFORMATION
Date of Manufacture: The eighth digit in the serial number indicates the year of manufacture; “3” is 2013 or 2023.
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]
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
Model: 429358. The CMIIT ID is located on the inside of the battery cover.
Please complete and retain for your records
The serial and model numbers are located under the headband cushion.
Serial number: ____________________________________________________________________
Model number: ____________________________________________________________________
Please keep your receipt with your owner’s guide. 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
The Bose Privacy Policy is available at worldwide.Bose.com/privacypolicyworldwide.Bose.com/privacypolicy
The Bose Terms of Use are available at worldwide.Bose.com/termsofuseworldwide.Bose.com/termsofuse
Apple and the Apple logo are trademarks of Apple Inc. registered in the U.S. and other countries. App Store is a
service mark of Apple Inc.
Android, Google Play, and the Google Play logo are trademarks of Google LLC.
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.
Bose Corporation Headquarters: 1-877-230-5639
A20, Acoustic Noise Cancelling, Bose, and Bose A30 Aviation Headset are trademarks of Bose Corporation.
©2023 Bose Corporation. No part of this work may be reproduced, modified, distributed, or otherwise used without
prior written permission.

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LICENSE DISCLOSURES
The following license disclosures apply to certain third-party software packages used as components in the product.
Package: LittlevGL Version 7.10.1
Copyright © 2020 LVGL LLC
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Copyright © 2006-2015, Thomas Pircher <[e-mail]>
The above is/are subject to the license terms reprinted below:
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LICENSE DISCLOSURES
Packages: CMSIS Version 5.6.0 & SDK CMSIS Peripheral Drivers 2.x.x
Copyright © 2010-2017 ARM Limited or its aliates. All rights reserved.
Package: Mbed TLS Version 2.26.0
Copyright © 2021 Arm Limited (or its aliates).
The above is/are subject to the license terms reprinted below:
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Version 2.0, January 2004
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LICENSE DISCLOSURES
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CONTENTS
WHAT’S IN THE BOX
Contents ............................................................................................................................. 15
Headset components .................................................................................................... 16
Control module options ............................................................................................... 17
IMPORTANCE OF PROPER FIT
Fit the headband............................................................................................................. 18
Adjust the microphone................................................................................................. 19
Conditions related to fit ............................................................................................... 21
Secure the cable and control module..................................................................... 21
Cable clips ................................................................................................................. 21
Control module holder ......................................................................................... 21
HEADSET CONTROLS
Power on ............................................................................................................................ 22
Power o............................................................................................................................ 22
ACOUSTIC NOISE CANCELLING
Acoustic Noise Cancelling (ANC) switch .............................................................. 23
Tap Control for talk-through communication...................................................... 24
Switch earcups ........................................................................................................ 25
Reset Tap Control................................................................................................... 25
OPERATION SWITCHES
Operation switch functions......................................................................................... 26
Change the operation switches................................................................................. 28
MICROPHONE PLACEMENT
Move the microphone ................................................................................................... 30

CONTENTS
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CONTENTS
BATTERIES
Replace the batteries .................................................................................................... 32
AIRCRAFT CONNECTORS
Dual plug (general aviation) ....................................................................................... 34
Connect to the aircraft ......................................................................................... 34
Disconnect from the aircraft .............................................................................. 34
U174, 5-pin XLR, and 6-pin Lemo ............................................................................. 35
Connect to the aircraft ......................................................................................... 35
Disconnect from the aircraft (U174 and 5-pin XLR).................................. 35
Disconnect from the aircraft (6-pin Lemo) .................................................. 35
STATUS LIGHTS
Power light ........................................................................................................................ 36
Bluetooth® light................................................................................................................ 37
Dim the status lights...................................................................................................... 37
Turn o the status lights.............................................................................................. 37
SECONDARY AUDIO SOURCES
AUX connections ............................................................................................................ 38
Bluetooth connections.................................................................................................. 39
Connect using the Bluetooth menu on your mobile device .................. 39
Disconnect a mobile device ............................................................................... 40
Reconnect a mobile device ................................................................................ 40
Recover a lost connection................................................................................... 40
Connect an additional mobile device............................................................. 40
Switch between connected devices................................................................ 41
Clear the headset pairing list ............................................................................. 41
Bluetooth functions........................................................................................................ 42
Bluetooth volume functions ............................................................................... 42
Call functions............................................................................................................ 43

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CONTENTS
SECONDARY AUDIO PRIORITY
Secondary Audio Mode switch.................................................................................. 45
PRIORITY operation switch ........................................................................................ 46
Secondary audio priority chart ................................................................................. 46
CARE AND MAINTENANCE
Store the headset ........................................................................................................... 47
Clean the headset........................................................................................................... 48
Limited warranty............................................................................................................. 49
Serial number location.................................................................................................. 49
Replacement parts and accessories........................................................................ 50
Ear cushions.............................................................................................................. 50
Headband cushions ............................................................................................... 52
Microphone windscreen....................................................................................... 53
Batteries ..................................................................................................................... 53
Microphone or terminator cover....................................................................... 53
TROUBLESHOOTING
Try these solutions first ................................................................................................ 54
Other solutions ................................................................................................................ 54
Acoustic Noise Cancelling................................................................................... 54
Intercom communications................................................................................... 55
Audio ........................................................................................................................... 56
Microphone ............................................................................................................... 57
Bluetooth audio source ........................................................................................ 58
Auto on/o................................................................................................................ 59
Reversionary mode ................................................................................................ 59

CONTENTS
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CONTENTS
INSTALLATION
Mount the aircraft panel connector......................................................................... 60
Mono connection diagram .................................................................................. 61
Stereo connection diagram ................................................................................ 62
Details on making the connections ................................................................. 63
TECHNICAL INFORMATION
Headset specifications.................................................................................................. 64
FAA Technical Standard Order.................................................................................. 66

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WHAT’S IN THE BOX
CONTENTS
Carry case
3.5 mm AUX audio cable
AA batteries (2)
Bose A30 Aviation Headset Control module holder
NOTES:
• For control module options, see page 17.
• For aircraft connector types, see page 34.
• If any part of the product is damaged, don’t use it. Contact your authorized
Bose dealer or Bose customer service.
Visit: support.Bose.com/A30support.Bose.com/A30

WHAT’S IN THE BOX
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HEADSET COMPONENTS
Headband
Earcup
Microphone assembly
(boom microphone,
microphone base,
and cable)
Cable clips
Control module
(see page 17)
Aircraft connectors
(see page 34)

WHAT’S IN THE BOX
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CONTROL MODULE OPTIONS
Intercom volume
controls (left/right)
Power light
Power button
Acoustic Noise
Cancelling switch
(see page 23)
Bluetooth light
Bluetooth/
Multi-function
button
Secondary Audio
Mode switch
(see page 40)
Bluetooth volume up H
Bluetooth volume down z
Conventional control moduleControl module with Bluetooth capability

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IMPORTANCE OF PROPER FIT
FIT THE HEADBAND
Proper fit is important both for comfort and optimal noise cancellation performance.
1. Locate the left Tand right Uicons inside the earcups to orient the
headset properly.
2. Place the headset on your head.
3. Adjust the headband so the ear cushions completely cover your ears.
NOTE: For best performance, make sure the ear cushions fit securely around your
ears so they create a seal.

IMPORTANCE OF PROPER FIT
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ADJUST THE MICROPHONE
1. Grasp the microphone base and adjust the boom so the microphone is level
with your mouth.
CAUTION: Microphone placement is important for clear communication.
The microphone boom can rotate 160°. Do NOT force it beyond
the intended rotation or damage could occur.

IMPORTANCE OF PROPER FIT
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2. Make sure the microphone is 0.5" (12.7 mm) from your lips.
NOTE: The microphone should not be touching your lips.
0.5"
12.7 mm
3. Make sure the white dot on the microphone base faces your mouth.
NOTE: If needed, twist the microphone base.
4. Test the headset before flight.