Bose QUIETCOMFORT 2 HEADPHONES User Manual

Bose® QuietComfort® 2
Acoustic Noise Cancelling®
Headphones

Owner’s Guid e
Brugervejledning
Bedienungsanleitung
Guía de usario
Notice d’utilisation
Manuale di istruzioni
Gebruiksaanwijzing
Bruksanvisningen

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

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product and enjoy its features. Please save this owner’s guide
for future reference.

WARNINGS

• 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.

• Keep batteries out of reach of children.

CAUTIONS

• Do not use these headphones when operating
on a public road, or where the inability to hear outside sounds
may present a danger to the user or others.

• Sounds that you rely on as reminders or warnings may have an
unf

amiliar character when you are using the headphones. Be
aware of how these sounds vary in character, so you can
recognize them as needed.

• Do not drop, sit on, or allow the headphones to be immersed in
water

.

Please dispose of used batteries properly, following
any local regulations. Do not incinerate.

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 on
www.Bose.com/static/compliance/index.html.

a motor vehicle

©2007 Bose Corporation. No part of this work may be reproduced, modified,
distributed, or otherwise used without prior written permission.

2

Battery light
indicator

Adjustable
headband

Battery

compartment

Rotating
earcups

1

/4" (6.3 mm)

Stereo phone adapter

Dual plug adapter

1

/8" (3.5 mm)

Headphone plug

Headphones

cord

Extension
cord

L mark

R mark

Replaceable
earcup cushions

Ports

Power
switch

Battery

R

+

–

AAA (IEC LR03)
alkaline battery

Welcome

Introducing QuietComfort® 2 Acoustic Noise
Cancelling® headphones

Thank you for purchasing the QuietComfort 2 Acoustic Noise
Cancelling headphones from Bose. Advanced research and
development, innovative engineering, and integrated
technologies enable the headphones to reduce unwanted
noise and provide you with exceptional acoustic performan ce
in a comfortable, convenient package.

Insert the battery first, before you put on the headphones.

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Wearing the headphones

As you put on the headphones, o bse rve the markings that
identify the left (L) and right (R) earcups. Adjust the headband so
it rests gently on top of your head and the earcup cushions fit
comfortably around your ears.

3

Headphones cord

L

LEVEL switch.

LO Typically used for airline audio

systems or audio devices that use
A/C power.

HI T ypically used for batte ry-powered

audio devices (CD/DVD or MP3/
digital audio players) and personal
computers.

Using Your Headphones

For noise reduction and audio

Use the supplied headphones cord to enjoy both audio and
noise reduction. Please note that the LEVEL switch on the

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plug is used to adjust the output volume of different audio
sources.

1. Set the LEVE

appropriate setting for your audio source.

Note: The HI and LO settings have no affect on noise reduction.

2. Insert the headphones cord into the opening on the left (L)

earcup. Push the plug in so it is flush with the side of the
earcup.

3. Connect the headphones cord to your audio source. Refer

to “Connecting to portable and home audio devices” on
page 5.

4. Put on the

5. Use the

further volume adjustments.

For noise reduction only

If you plan to use them for noise reduction only, simply put on
the headphones and turn on the power switch, located on the
right earcup. The headphones cord is not required.

L switch on the headphones cord to

headphones and turn on the power switch.

volume control on your audio source to make

4

Using Your Headphones

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
mm output jack such as a CD, DVD, MP3/digtal
audio player, or personal computer. Set the
LEVEL switch to HI and plug the headphones
cord directly into the 3.5 mm output jack.

To connect to a home stereo system that has a ¼ in
(6.3

mm) stereo output jack, use the the ¼ in (6.3 mm)
stereo adapter plug included with your headphones. Set the
LEVEL switch to LO. Plug the headphones cord into the
adapter plug and insert it into the output jack on your stereo
system.

devices that use a single 3.5

Connecting to airline audio systems

The audio output connections on airline audio
systems vary, but they typically have

single 3.5 mm output jacks.

Note: A
experience from a home stereo or portable source.

Connecting to dual output jacks

Set the LEVEL switch to LO. Plug the
headphone cord into the dual-plug adapter
and insert it into the dual output jacks.

Connecting to a single output jack

Set the LEVEL switch to LO. Plug the
headphone cord into the adapter and
insert it into the single output jack.

The LO setting of the LEVEL swit
levels of strong audio output signals which are common
on airline systems. If you find that the volume level is
too low, set the LEVEL switch to HI.

irline audio may not equal the high quality audio you

dual or

ch lowers the volume

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5

R

L

Care and Maintenance

Folding the earcups for storage

QuietComfort® 2 Acoustic Noise Cancelling® headphones
feature rotating earcups that fold flat for easy, convenient

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storage. The earcups rotate in one direction only.

CAUTION: Incorrectly rotating the earcups can damage the
headphones.

Reattaching earcup cushions

The earcup cushions are held in place by a mounting flange.
This flange snaps under small tabs located around the inside
rim of the earcup.

If an earcup cushion becomes partially or completely
detached, push its mounting flange back into the earcup. Then
use your finger or thumb to press around the edge of the
mounting flange, making sure it snaps into place all the way
around the earcup.

6

+

–

R

Care and Maintenance

Battery replacement

Although it varies by usage, battery life averages 35 hours.
With the headphones turned on, the battery light indicator will
flash when there are approximately 8 hours of battery life
remaining.

When a replacement is needed, use

1 AAA alkaline battery
(IEC LR03). Tilt the top of the right earcup inward to gain
access to the battery compartment.

Note: You can use rechargeable batteries (NiMH, composed of
nickel metal hydride, are recommended). They average half the
life of alkaline batteries. However, the low battery indicator light is
not set for such batteries and will not be a reliable indicator of
their remaining battery life.

Replacement parts and 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.

• Dual plug adapter

• Headphones cord

• 1.5 m extension cord

• 6.2 m extension cord

• Deluxe carry case

• Replacement ear cushion kit

• Accessory kit (includes
a

dapters, extension cord, and

two AAA batteries)

• QC2 Cell Connect Accessory
Ki

t

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7

Care and Maintenance

Cleaning the headphones

Scheduled cleaning is not required. However, you can simply
wipe the outside surfaces with a damp cloth, as needed. Also,

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be sure that the earcup ports are clear and that no moisture is
allowed into the earcups.

Troubleshooting

Problem What to do

No noise reduction • Turn on the headphones

•Check battery

Low or no volume • Turn source volume up

• Set LEVEL switch to HI

• Check headphones cord connection at
he source and the earcup

t

Crackling noise;
intermittent loss
of noise reduction

Low rumbling • Adjust how the headphones fit on your

Volume too high • Turn source volume down

• Replace the battery

rs

ea

• Make sure earcup ports are clear

• Set LEVEL switch to LO

8

Reference

Aviation Communication Headset Needs

While QuietComfort® 2 headphones are designed for
passenger use in air transport aircraft, they are not engineered
to meet the needs of pilots or to meet civil aviation authority
standards for communication he a d sets .

WARNING: Except in case of emergency, Bose recommends
that you NOT use these headphones as aviation communication
headsets because:

• No incoming audio will be heard with a discharged or
improperly installed battery. This could result in the potential
of missed communications while piloting an aircraft.

• Extremely loud ambient noise levels that are common to
many propeller-driven aircraft may impair the user’s ability to
receive incoming audio communications, particularly during
takeoff and climb out when noise levels are high.

• The QuietComfort 2 headphones are not engineered for the
altitude, temperature or other environmental conditions
common in non-commercial aircraft, resulting in possible
interference to critical communications.

For pilots, Bose offers a communication headset which is
specifically designed to meet or exceed civil authority
standards. It features a microphone with the appropriate power
and intelligibility for transmission of flight information. It is also
engineered to withstand the altitude and temperature
conditions that are common in non-commer c i al aircraft.

For more information on products for pilots, please contact
Bose Corporation using the information supplied on the inside
back cover of this owner’s guide.

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9

Bose Corporation

Australia

Phone: [phone]
www.Bose.com.au

Belgique/België

Phone:[phone]
Fax: [phone]

Canada

Phone:[phone]
Fax: [phone]
www.Bose.ca

China

Phone:[phone], x162
Fax: [phone]

Danmark

Phone:[phone]
Fax: [phone]

Deutschland

Phone:[phone]
Fax: [phone]
www.Bose.de

France

Phone:[phone]
Fax: [phone]
www.Bosefrance.fr

India

Phone:[phone]
Fax: [phone]
www.Boseindia.com

Ireland

Phone:[phone]
Fax: [phone]
www.Bose.ie

Italia

Phone:[phone]
Fax: [phone]
www.Bose.it

Japan

Phone:[phone]
Fax: [phone]
www.Bose.co.jp

Mexico

Phone:[phone]
Fax: [phone]

Nederland

Phone:[phone]
Fax: [phone]
www.Bose.nl

New Zealand

Phone:[phone]

Norge

Phone:[phone]
Fax: [phone]

Österreich

Phone:[phone]
Fax: [phone]

Schweiz

Phone:[phone]
Fax: [phone]

Sverige

Phone:[phone]
Fax: [phone]

United Kingdom

Phone: [phone]
Fax: [phone]
www.Bose.co.uk

United States

Phone:[phone]
Fax: [phone]
www.Bose.com

World Wide Web

www.Bose.com
www.Boseeurope.com

©2007 Bose Corporation, The Mountain,
Framingham, MA 01701-9168 USA
AM257565 Rev.02