Operation Manual

For internal and reseller distribution only – Bose confidential.
CC013997 QC25 FAQ 5.6.14
10
Bose
®
QuietComfort
®
25
Acoustic Noise Cancelling
®
headphones
Can the QuietComfort 25 Acoustic Noise
Cancelling headphones be used
overseas?
Yes. Most intercontinental aircraft utilize an audio jack that is compatible
with the standard headphone plug at the end of the cable. Others may
use a different jack that can be accessed by using the dual adapter that
is supplied with the headphones.
Can I use the QuietComfort 25 Acoustic
Noise Cancelling headphones outside in
the rain or snow?
The headphones are not designed for use in wet environments. It is very
important that no moisture be allowed to enter the headphones either
through the ports or the earcups. If any water does get into the system,
there may be serious damage to the headphones.
What if the volume is too high or too low?
The volume control on the selected audio source can be used for volume
adjustments. If the volume on the source cannot be lowered enough, the
attenuating adapter with single or dual plugs can be used to achieve the
desired output volume.
In addition, if you are using an iPod, iPhone or iPad, you can use the inline
remote to adjust the source volume by pressing the top (+)/bottom (-)
buttons on the remote.
Are the QuietComfort 25 Acoustic Noise
Cancelling headphones “wireless”
headphones?
No. However, the noise reduction technology can be used without the
need for any cable attachments. “Wireless” is an industry term used for
electronics that transmit information via radio frequency – the electronics
in QuietComfort 25 headphones do not do this.
How many batteries do the headphones
need?
To operate the headphones, one 1.5V AAA size Alkaline or Lithium primary
battery is needed. The battery will provide power for approximately 35
hours of use. The on/off indicator light on the right earcup will flash when
there are approximately five hours of battery life remaining. When the
battery is exhausted, the headphone will produce a soft audible clicking
noise for about a minute before shutting down. Of course, user conditions
and batteries may vary; therefore, it is always a good idea to keep an
extra AAA battery in the carrying case.