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QuietComfort® 2 Acoustic Noise Cancelling® headphones

Sold from 2003 - 2009

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Sound
Noise Cancellation
Power
Cosmetic

If sound is missing from the left or right ear while listening to your product, try the following:

If you experience static, distorted audio or unexpected noises from headphones when loud noise around you, note the following:

If you experience distortion, crackling, static, noise or unexpected poor sound quality from your product:

If you hear a high-pitched whine or whistle from one or both ears while using your product, try the following:

If you hear excessive low frequencies from your product, the sound quality might be boomy, muffled or difficult to hear. To reduce the bass response and/or increase the treble response, try the following:

If you don't hear enough low frequency audio from your product, the sound quality might be tinny, shrill or lacking fullness. To increase the bass response or reduce the treble response, try the following:

If your product seems to be set up properly but does not produce sound, try the following:

If the sound played from your product cuts in and out, plays inconsistently or is choppy-sounding, try the following:

If your product produces unexpected ticking, clicking or popping noises when turning on, try the following:

If one of the speakers in your product cuts in and out, is of low volume or produces poor sound quality, try the following:

If you hear a pulsing, whirring or vibrating type of sound coming from a component of your product, try the following:

If the volume level heard from your product is faint or quieter than normal, try the following:

If you experience static, distorted audio or unexpected noises from headphones when loud noise around you, note the following:

The combination of both active and passive noise reduction technologies in your headphones is desgined to block out most sounds but may not block out everything. You may still hear higher pitched sounds like sirens and even human voices, although the volume of these sounds should be dramatically reduced. If you feel you are not geting any noise reduction with your headphones, here are a few steps you can try.

If your product produces unexpected ticking, clicking or popping noises when turning on, try the following:

If your product is connected to power but does not appear to be receiving power, try the following:

If you think your battery door is missing, it may not be. We'll help you confirm if it is.

If the headband on your headphones is damaged or detached, note the following: