Operation Manual

For internal and reseller distribution only – Bose confidential.

CC013997 QC25 FAQ 5.6.14

Bose

QuietComfort

Acoustic Noise Cancelling

headphones

Can I use rechargeable batteries?

Yes, with a reduced runtime. The difference in capacity and voltage of

rechargeable AAA compared to alkaline batteries shortens the useful run

time of the batteries by approximately 20%. The use of NiMH low-self

discharge AAA size batteries is a good match for the QuietComfort

Acoustic Noise Cancelling headphones for customers who prefer to use

rechargeable batteries. One thing to note is the low-battery indicator light

is not calibrated for the lower voltage of rechargeable batteries; it may

not be a reliable indicator of remaining run time, however, the

QuietComfort 25 headphones will continue to operate normally while the

light flashes until the battery is depleted.

How are the headphones cleaned?

The headphones do not require scheduled cleaning. However, if some

cleaning is necessary, gently wipe the outside surfaces with a slightly moist

cloth. Be careful not to allow any moisture to enter the headphones

through the ports or earcups. In addition, be certain not to force any dirt

or debris into the ports. Do not blow air into, or vacuum, the ports or the

interior of the earcups.

What do I do if the earcup cushions

come off?

The earcup cushions are held in place by a mounting flange. That flange

snaps under eight small tabs located around the inside 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 in

place under all eight tabs around the earcup. If the earcup cushions are

not properly installed, the noise reduction properties of the headphones

will be diminished.

Why would I want to replace the

cushions?

The earcup cushions have been designed using materials that should

provide years of long-lasting, comfortable performance. Replacement

cushions are offered in the event that the cushions become excessively

dirty or damaged in some way. A comfortable, effective cushion seal is

important for a great experience with your headphones.

Are the headphones durable?

Yes. The headphones carry a one-year limited warranty in the U.S. for

defects in materials and workmanship. We recommend you store the

headphones in their carrying case when not in use. The case will help

protect the integrity of the headphones and the high-performance

headphone speaker drivers from over-compression.