Bose QuietComfort 3 User manual

Bose®QuietComfort®3
Acoustic Noise Cancelling®
Headphones
Owner’s Guide
Guia de usuario
Notice d’utilisation

Safety Information
2
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Français Español
Safety Information
Please read this owner’s guide
Please take the time to follow the instructions in this owner’s guide carefully. It will
help you to properly use your new Bose®product and enjoy its features. Please save
this owner’s guide for future reference.
WARNINGS
• To reduce the risk of fire or electric shock, do not expose the battery charger to rain or moisture. Do not expose the
charger to dripping or splashing of liquids.
• The battery charger must be used indoors. It is neither designed nor tested for use outdoors, in recreation vehicles,
or on boats.
• Charge the battery only on a charger approved by Bose Corporation. Do not continue charging the battery if it does
not reach full charge within the specified charging time. Doing so may cause the battery to become hot, rupture, or
ignite. If you see any heat deformation or leakage, properly dispose of the battery.
• Do not expose the battery to temperatures greater than 212°F (100°C). If exposed to excessive heat, the battery
can catch fire and explode.
• Do not place the battery in direct sunlight, or use or store it inside cars in hot weather where it can be exposed to
temperatures in excess of 140°F (60°C). Doing so may cause the battery to generate heat, rupture, or ignite. Using
the battery in this manner also may result in a loss of performance and a shortened life expectancy.
• Do not short circuit the battery. Avoid placing it around metal objects such as keys, pocket change, paper clips, and
jewelry.
• Do not hit the battery with a hammer, step on, throw or drop it to expose it to a strong shock. Do not pierce the bat-
tery with a sharp object such as a nail. Do not crush, dent, or deform the battery in any way. If the battery becomes
deformed, properly dispose of it.
• The battery used in this device may present a risk of fire or chemical burn if mistreated. Do not disassemble, heat
above 212°F (100°C), or incinerate. Replace battery with Bose part PC40229 only. Use of another battery may
present a risk of fire or explosion.
CAUTIONS
• Do not allow the battery to get wet. Avoid using it in high humidity environments.
• Avoid electrostatic discharge to the battery.
• Do not drop or sit on the headphones, or allow them to be immersed in water.
• Long-term exposure to loud music may cause hearing damage. It is best to avoid extreme volume when using these
headphones, especially for extended periods.
• Do not use these headphones when operating a motor vehicle on a public road, or where the inability to hear out-
side sounds may present a danger to you or others.
• Sounds that you rely on as reminders or warnings may have an unfamiliar character when you are using the head-
phones. Be aware of how these sounds vary in character, so you can recognize them as needed.
Please dispose of used or damaged batteries promptly and properly,
following any local regulations. Keep away from children. Do not incinerate.
To return batteries for recycling, contact Bose or your Bose dealer. In the United
States only, call 1-800-905-2180. For other regions, see the contact information
on the inside back cover.
This product conforms to the EMC Directive 89/336/EEC and to the Low
Voltage Directive 73/23/EEC. The complete Declaration of Conformity can be
found at www.bose.com/static/compliance/index.html.
©2009 Bose Corporation. No part of this work may be reproduced, modified, distributed, or 
otherwise used without prior written permission.

3
Important Safety Instructions
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Important Safety Instructions
1. Read these instructions – for all components before using this product.
2. Keep these instructions –for future reference.
3. Heed all warnings – on the product and in the owner’s guide.
4. Follow all instructions.
5. Do not use this product near water or moisture – Do not use this product near a bathtub, washbowl, kitchen
sink, laundry tub, in a wet basement, near a swimming pool, or anywhere else that water or moisture are present.
6. Clean only with a dry cloth – and as directed by Bose Corporation. Unplug the battery charger from the wall out-
let before cleaning.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources, such as radiators, heat registers, stoves, or other apparatus (includ-
ing amplifiers) that produce heat.
9. Only use attachments/accessories specified by Bose.
10. Unplug the battery charger during lightning storms or when unused for long periods of time –to prevent
damage to this product.
11. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been dam-
aged 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 – Do not attempt to service this product yourself. Opening or removing covers may expose
you to dangerous voltages or other hazards. Please call Bose to be referred to an authorized service center near
you.
Compliance with FCC rules (U.S.A., only)
This device complies with Part 15 of the FCC rules. 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.
NOTICE
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, this 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 off
and on, you are encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment to an outlet on a different circuit than the one to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
FCC WARNING
• Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate this equipment.
• Proper connections must be used for connection to a host computer and/or peripherals in order to meet FCC
emission limits.

Welcome
4
English
Français Español
Welcome
Introducing the QuietComfort®3 Acoustic Noise 
Cancelling®headphones
Thank you for purchasing the QuietComfort®3 Acoustic Noise Cancelling®
headphones from Bose. Our innovative technologies enable these on-ear
headphones to reduce unwanted distractions while providing you with lifelike audio
performance and a comfortable fit.
Adjustable
headband
Power switch
with power indicator
Replaceable ear
cushions
Rotating
earcups
Ports
R (right)
mark
L (left)
mark
Accessories included:
Battery
Battery
charger
Headphones audio cord Dual-plug
adapter
Carrying case
IMPORTANT: Before initial headphone use, it is important to fully charge the
battery for a minimum of two hours. See “Charging the battery” on page 5.

5
Preparing Your Headphones
English FrançaisEspañol
Preparing Your Headphones
Charging the battery
Initial charging time for a new battery is approximately two hours. After that, charging
time varies depending on the battery charge state.
1. Insert the battery into the charger.
2. Swing the plug prongs out of the charger body.
3. Plug the charger into a live AC (mains) outlet.
Indicator:
On = Charging
Off = Charging complete
Flashing = See “Troubleshooting”
on page 10.
12 3
IMPORTANT: DO NOT STORE A BATTERY IN THE CHARGER.
• After charging, unplug the battery charger and remove the battery.
• Storing a battery in the charger diminishes the charged state of the bat-
tery over time and may permanently reduce the capacity of the battery.
Battery handling and precautions
• The battery does not have to be completely discharged in order to charge it. You
can charge the battery at any time.
• Never leave the battery in a discharged state. Charge after use and before storage.
• Avoid extreme temperatures when charging the battery. Battery charging should
occur within the temperature range of 32°F (0°C) to 95°F (35°C).
• A fully charged battery provides approximately 25 hours of use. Replace the battery
when it no longer provides adequate power after charging. To order a replacement
battery, see “Troubleshooting” on page 10.
• Keep the terminals on the battery, in the charger, and in the right earcup of the
headphones clean at all times. Dirty terminals may cause poor electrical connec-
tions and affect performance. For cleaning instructions, see “Cleaning” on page 10.

Preparing Your Headphones
6
English
Français Español
Installing the battery
Be sure to fully charge the battery before
first use. See “Charging the battery” on
page 5.
Right
earcup
Battery
Headband
1. Make sure the headphones power
switch is off.
2. Hold the headphones right earcup as
shown.
3. Insert the battery into the compartment.
Be sure to push the battery all the way
in until it is flush with the earcup.
Removing the battery for charging
Perform Step 1 and 2 and lift the battery
straight up and out of the battery
compartment.

7
Using Your Headphones
English FrançaisEspañol
Using Your Headphones
Wearing your headphones
You can use your headphones only for noise reduction or for listening to audio along
with the benefit of noise reduction.
As you put on the headphones, observe the L (left) and R (right) markings that identify
the left and right earcups. Adjust the headband so it rests gently on top of your head
and the earcup cushions fit comfortably on your ears.
Using your headphones for audio with noise reduction
For listening to an audio source, you need to use the supplied headphones cord.
1. Plug the appropriate end of the head-
phones cord into the left earcup.
Left
earcup
Headphones
cord
Power switch
indicator
Right earcup
2. Plug the other end of the cord into the
audio device (see “Connecting to porta-
ble and home audio devices” on page 8).
3. Turn on the audio device, making sure
the volume is initially set to a low level.
4. Turn on your headphones. The power
switch indicator should light.
5. Set the volume level using the volume
control on the audio device.
Using your headphones only
for noise reduction
When using the headphones just for noise
reduction, you do not need to connect the
headphones cord. Just turn on your
headphones and put them on your head.
When the battery needs charging
• When the power switch indicator starts flashing the battery is in a low-charge state.
From the moment the indicator starts flashing, the battery has about four hours of
life left.
• When replacing a battery, make sure you charge the new battery for a minimum of
two hours. See “Charging the battery” on page 5.
• Before storing the battery for an extended period of time, fully charge the battery to
maximize its life.

Using Your Headphones
8
English
Français Español
Connecting to portable and home audio devices
The 3.5 mm plug on the headphones cord allows you to connect
your headphones to a variety of audio devices that use a 3.5 mm
output jack:
• CD, DVD, or MP3/digital audio player
• Desktop or laptop personal computer
Connecting to airline audio systems
The audio output connections on airline audio systems vary,
but they typically have dual or single 3.5 mm output jacks.
Note: Airline audio may not equal the high-quality audio you
experience from a home stereo or portable source.
Connecting to dual output jacks
Headphones
cord jack
Dual 3.5 mm
plugs
Plug the headphone cord into the dual-
plug adapter and insert it into the dual
output jacks.
Connecting to a single output jack
Headphones
cord jack
Single 3.5
mm plug
Movable
plug
Pivot the movable plug so that it snaps in
place against the adapter body. Plug the
headphone cord into the adapter and
insert it into the single output jack.
The dual-plug adapter lowers the volume
levels of strong audio output signals that
are common on airline systems. If you find that the volume level is too low,
remove the adapter and plug the headphone cord directly into the 3.5 mm
output jack.
WARNING: Use only the Bose®airline adapter to connect headphone to
airplane seat jacks. DO NOT use adapters intended for mobile phones as
this could result in personal injury such as burns or property damage due to
overheating. Remove and disconnect immediately if you experience warming
sensation or loss of audio.

9
Care and Maintenance
English FrançaisEspañol
Care and Maintenance
Folding and storing
QuietComfort®3 Acoustic Noise Cancelling®headphones feature rotating earcups
that fold flat for easy, convenient storage.
Left
Right
CAUTION: The earcups rotate only in one direction. Incorrectly rotating the earcups can
damage the headphones.
Using the carrying case
The carrying case provides safe storage for your headphones and its accessories.
The foam tray holding the battery and charger is removable, allowing you to store
other items, such as an MP3 player, in the case.
Note: To maximize battery life, always charge the battery before storing it and never
store the battery in the charger.
Charger
Dual-plug
adapter
Headphones
Battery
Space for
headphones
cord

Care and Maintenance
10
English
Français Español
Cleaning
Scheduled cleaning is not required. However, you can simply wipe the outside surface
of the headphones with a dry cloth, as needed. Also, be sure that the earcup ports are
clear and that no moisture is allowed into the earcups. Use only a dry cloth to clean
the electrical contacts on the battery, in the charger, or in the battery compartment of
the headphones.
CAUTIONS:
• Be sure to unplug the battery charger before cleaning it.
•DO NOT use a moist cloth to clean the electrical contacts on the battery, in the char-
ger, or in the battery compartment of the headphones.
Troubleshooting
If you experience any trouble using your headphones, try the instructions in the
following table. If you still need help, call for technical assistance. In the United States
only, call 1-800-905-2180. For other regions, see the contact information on the inside
back cover.
Problem What to do
No noise reduction • Make sure the headphones power switch is on.
• Charge the battery.
Low or no volume • Make sure the audio source is on and the volume is turned up.
• Do not use the dual-plug adapter.
• Check the headphones cord connection at the source and the
earcup.
Crackling noise;
intermittent loss of
noise reduction
• Charge the battery.
• Clean the contacts on the battery and in the battery 
compartment. See “Cleaning” on page 10.
• Replace the battery.
Low rumbling
sound
• Adjust earcup fit on your ears.
• Make sure earcup ports are not blocked.
Charger indicator
is flashing
•Remove the battery, wait 10 seconds, and insert it again.
• Unplug the charger, wait 10 seconds, and plug it in again.
• Make sure the air temperature is within the acceptable range
for charging, 32°F (0°C) to 95°F (35°C).
• Replace the battery.
• Replace the charger.
Short battery life
after charging
• Replace the battery.
• Replace the charger.

11
Care and Maintenance
English FrançaisEspañol
Reattaching earcup cushions
If an earcup cushion becomes detached from the
earcup:
1. Align the two holes on the back of the cush-
ion with the two posts on the earcup.
2. Push the cushion onto the earcup.
3. Press in around the outside edge of the
cushion to snap it in place.
4. Make sure the cushion is flush all the way
around and that there are no gaps between
the cushion and the earcup.
Accessories
You can purchase accessories from your Bose®dealer, on the Internet
(www.bose.com), or by placing an order over the phone. See the inside back cover for
contact information.
Power ratings
Battery charger: 100VAC - 240VAC, 5.5W
Battery: 3.7VDC, 200mAh
•Battery •QC
®3 Mobile Communications Kit
• Battery charger • Replacement ear cushions
• Carrying case • Accessory kit (includes adapters and extension cable)
• 5 ft. (1.5 m) audio extension cable

Bose Corporation
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ose Corporation
Australia
Phone: 1 www.Bose800 023 367
www.Bose.com.au
Belgique/België
Phone: [phone]
Fax: [phone]
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Phone: [phone], x162
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World Wide Web
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www.Boseeurope.com

©2009 Bose Corporation, The Mountain,
Framingham, MA 01701-9168 USA
AM324019 Rev.00
11111I111111i~IH
32<1019-0010

QuietComfort@ 3Acoustic Noise Cancelling{~) Headphones
An unmatched combination of noise reduction,
audio performance and comfortable on-ear fit.
Customers tell us they're often asked about
their
Bose~ QuietComforl 3headphones.
For your convenience, this courtesy card
i is yours to pass along.
Courtesy Card

Contact Bose toll free in the following countries:
u.s. 1-888-757-9943
U.K. 0870 7414500
Germany [phone]
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France 01-30616363
Australia 1800 023 367
China 86-21-62713000 ext. 162
Denmark 04343-7777
~an 0120-130-168
©2006 Bose Corporation. CCM-003083
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_,,',,,,~' ',~,;;:¥i,_ _' .1>';1"""" "~'::'i.~1:':~"
,"iF'>,,-- ©2004 eose Corporation."· X'
i;2?~3 AM Rev. 00 CCM-OOO? 43'
Printed in Taiwan

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correspondence to the address below.
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.....EIIIS'~
ATIENTION: WR
BOSE CORPORATION
THE MOUNTAIN
P.O. BOX 9168
FRAMINGHAM MA 01701-9168
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PLACE
FI RST-CLASS
STAMP
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••
IMPORTANT! IMPORTANT! IMPORTANT!
PLEASE COMPLETE AND RETURN IMMEDIATELY!
Register online at http://www.bose.com/register
6 Please indicate the serial number(s) of this product.
(Found on the 10 1abE" attached to your product or consutt your owner's manual for the location.)
Serial number(s):
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4 Date of Purchase: (month/day/year)
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5 Please indicate Bose" product(s) purchased:
1. 0 Wave" radio 17. 0 Acoustimass 15 speakers
2.0 Wave" radio/CD 18.03'2'1 entertainment system
3. 0 Acoustic Wave" music system 19. 0 Lifestyle" 5 music system
4.0141" speakers 20.0 Lifestyle" 12 theater system
5.0151" speakers 21.0 Lifestyle" 20 music system
6.0161'" speakers 22.0 Lifestyle" 28 entertainment system
7. 0201" speakers 23. 0 Lifestyle" 35 entertainment system
8. 0251'" speakers 24. 0 Lifestyle" 50 theater system
9. 0301" speakers 25. 0 Lifestyle" powered speakers
10. 0601'" speakers 26. 0 VCS-l 0" center speaker
11.0701" speakers 27. 0 HeadsetX
12.0901" speakers 28.0 QuietComfort" headphones
13. 0 Acoustimass" 3 speakers 29. 0 TriPort" headphones
14. 0 Acoustimass 5 speakers 30. 0 TriPort" CD music system
15. 0 Acoustimass 6 speakers 31. 0 Other, please specify
16. 0 Acoustimass 10 speakers
City:
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6. 0 Other Bose speakers
7.0 Other
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LLJ!
II
r·
o
2.0
LLJI
M_
Year
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LLJI II
1.0 2.0 LLJI I I
Month
Year
Month Year
12 Your gender:
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13
Your marital status: 1.0 Married
2.0 Single
14 For your primary residence, do you:
1.o0wn 2.0 Rent
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5.0 Catalog
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I
7 Where was product purchased:
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3. 0 Bose store
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Name:
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8b Which ones?
1. 0 Lifestyle" system
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1. 0 Under $15,000 7.0$100,000-$124,999
2.0$15,000-$24,999 8.0$125,000-$149,999
3. 0 $25,000-$34,999 9. 0 $150,000-$174,999
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6. Travel
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Limited Warranty
Bose® Product
Please Keep This Warranty Information Card
With Your Owner's Guide.
What is covered:
All parts defective in material and workmanship. This Limited Warranty does
not cover adefect that has resulted from improper or unreasonable use or
maintenance, accident, excess moisture, improper packing, lightning, power
surges, or unauthorized tampering, alteration or modification.
Limitation on Liability:
THE PROVISIONS OF THIS LIMITED WARRANTY ARE IN LIEU OF ANY
OTHER WRITTEN WARRANTY, WHETHER EXPRESS OR IMPLIED, WRIT-
TEN OR ORAL, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR
FITNESS FOR APARTICULAR PURPOSE. Notwithstanding the above, where
applicable, if you qualify as a"consumer" underthe Magnuson-Moss Warranty
Act, then you may be entitled to any implied warranties allowed by law for the
period ofthe express warranty as set forth below. Some states do not allow lim-
itations
on how long an implied warranty lasts, so the above limitation may not
apply to you.
For how long:
The Bose Limited Warranty lasts one year from the purchase date for elec-
tronic products, systems, and powered speaker components, and five years
for speaker components that are not self powered (amplified). Integrated,
stereo, and home theater systems have aone year Limited Warranty.
Additionally, the
131qj) marine speakers have athree year Limited Warranty.
Powered component speakers have aone year Limited Warranty term for the
electronics and five years for the speakers. The Headset Xhas a5-year
Limited Warranty, excluding the ear cushions, which have a6-month Limited
Warranty. The QuietGomfoft® headphones,
TriPoft® headphones, and TriPort®
CD music system have aone year Limited Warranty. Please see your
Owner's Guide for details. For the Limited Warranty on professional products,
please refer to your Owner's Guide for details. The
PM-1 Portable CD
(Compact Disc) Players have a gO-day Limited Warranty.
What we will do:
We will, at our sole option, repair or replace any defective parts within a reasonable
period of time and free of charge.
What we will not do:
Pay shipping or transportation charges from you to us.
What you must do to obtain Warranty Service:
1. Return product with proof of purchase from an authorized Bose dealer to a Bose
Service Agency, or
2. Return product with proof of purchase from an authorized Bose dealer directly to
Bose Corporation. If you elect to return the product directly to Bose Corporation,
the following procedures must be followed.
a) Contact Bose Corporation for specific return and shipping instructions, which
will include but may not be limited to;
b) Properly packing the product in the original carton for shipping. If you need a new
carton, contact Bose Corporation for a new carton available at a nominal charge;
Warranty information continued on other side