Bose QuietComfort 2 User manual

©2008 Bose Corporation, The Mountain,
Framingham, MA 01701-9168 USA
AM315508 Rev.00
QUIETCOMFORT®2
QUIETCOMFORT®2
Owner’s Guide
Brugervejledning
Bedienungsanleitung
Guía de usario
Notice d’utilitsation
Manuale di istruzioni
Gebruiksaanwijzing
Bruksanvisningen

ii
English
Safety Information
Please read this owner’s guide
Reading this owner’s guide will help you to properly use
your new Bose product and enjoy its features. Please
save this owner’s guide for future reference.
WARNING:
• Sounds that you rely on as warnings or reminders
may have an unfamiliar character when you are using
the headphones. Be aware of how these sounds vary
in character, so you can recognize them as needed.
• Long-term exposure to loud music may cause hear-
ing damage. It is best to avoid extreme volume when
using these headphones, especially for extended pe-
riods.
• Keep batteries out of reach of children.
CAUTION:
• Do not use these headphones when operating
a motor vehicle, or where the inability to hear outside
sounds may present a danger to you or others.
• Do not drop, sit on, or allow the headphones to be
immersed in water.
Batteries
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.
©2008 Bose Corporation. No part of this work may be
reproduced, modified, distributed, or otherwise used
without prior written permission.
©2008 Bose Corporation. No part of this work may be reproduced, modified, distributed, or otherwise used without
prior written permission.

1
English
Thank you for purchasing the QuietComfort®2 Acoustic Noise Cancelling®headphones
from Bose.
Three decades of research have resulted in the most advanced Bose®consumer noise
reduction technology ever to be developed. The QuietComfort 2 headphones offer this noise
reduction technology while maintaining our acclaimed lifelike audio performance and
comfort. Enjoy them when you fly, work, or just relax.
Headphones Headphones case
Headphones cord
Airline adapter 1/4in (6.3mm)
AAA battery
Stereo adapter
Extension cord

2
English
Before you put on the headphones
1. Tilt the top of the right earcup inward to
gain access to the battery compart-
ment.
2. Open the battery compartment and
insert the battery as shown.
For noise reduction only
Put on the headphones. Then slide the
power switch forward to the On position.
The battery light indicator will illuminate.
You do not need to connect the
headphones cord for noise reduction only
operation.
AAA alkaline battery
(IEC LR03)

3
English
For noise reduction and audio
To enjoy both noise reduction and audio:
1. Gently push the headphones plug all
the way into the connector opening until
the plug housing is flush with the
earcup.
2. Connect the headphones cord to an
audio source.
Note: The LO setting of the LEVEL switch
lowers the volume 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.
3. Put on the headphones. Then slide the
power switch forward to the On position.
The battery light indicator will illuminate.

4
English
Using the adapter plugs
To connect to in-flight entertainment
systems equipped with dual output
connectors, use the dual 3.5 mm output
plug.
Note: If you find that the volume level is too low,
remove the adaptor plug and plug the headphone
directly into the 3.5 mm output connector.
To connect to an audio device that has a ¼
in (6.3 mm) stereo output connector, use
the stereo adapter plug.
Storing the headphones
To store the headphones in the case,
rotate the earcups inward, then place
the headphones in the case.
CAUTION: Incorrectly rotating the earcups can
damage the headphones.

5
English
Battery life and replacement
Although it varies by usage, battery life
averages 40 hours. The battery light indicator
starts flashing when there are approximately
5 hours of battery life remaining.
When a replacement is needed, use a AAA
alkaline battery (IEC LR03).
Note: Remaining battery life may vary when
using rechargeable batteries. NiMH batteries,
composed of nickel metal hydride, are
recommended.
Reattaching the earcup cushions
If a cushion becomes partially or
completely detached:
1. Push its mounting rim back into the
earcup .
2. Press around the edge of the mounting
rim, making sure it snaps into place all
the way around the earcup.
Replacement parts and
accessories
You can purchase accessories from your
Bose dealer, on the internet, or by placing
an order over the phone. See the inside
back cover for contact information.

6
English
Troubleshooting
Problem What to do
No noise reduction • Turn on the headphones.
• Replace the battery.
Low or no volume • Turn the source volume up.
• Set LEVEL switch to HI.
• Check the headphones cord connection at the source and the earcup.
Crackling noise;
intermittent loss of
noise reduction
• Replace the battery.
Low rumbling sound • Adjust the fit of the headphones on your ears.
• Make sure no foreign objects are inside the earcups.
Volume too high • Turn the surce volume down.
• Set LEVEL switch to LO.

7
English
Other Considerations
WARNING: Except in case of emergency, Bose recommends that you NOT use these head-
phones 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 common to many propeller-driven aircraft may impair your
ability to receive incoming audio communications, particularly during takeoff and climb out.
• The QuietComfort 2 headphones are not engineered for altitude, temperature or other environmen-
tal conditions common in non-commercial aircraft, resulting in possible interference to critical com-
munications.
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 headsets.
For pilots, Bose offers a communication
headset 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-
commercial 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.

Australia
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New Zealand
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BOSE CORPORATION