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Replacing the battery in your product | QuietComfort® 2 Acoustic Noise Cancelling™ headphones (2005)
quietcomfort®-2-acoustic-noise-cancelling™-headphones-(2005)
QuietComfort® 2 Acoustic Noise Cancelling™ headphonesSold from 2005 - 2009

Replacing the battery in your product | QuietComfort® 2 Acoustic Noise Cancelling™ headphones (2005)

To replace the battery:

Tip: If the headphones will be stored for extended periods of time without use, removing the battery.
  1. Tilt the right earcup inward to access to the battery compartment
  2. Open the battery door by gently pressing and lifting the tab toward the top of the earcup
  3. Tip the headphones so the battery drops out
  4. Insert the new battery (positive/+ side first)
  5. Close the battery door by gently pressing it into the earcup until it clicks.
Inserting battery

There is a Youtube video for these instructions.

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Replacing the battery in your product | QuietComfort® 2 Acoustic Noise Cancelling™ headphones (2005)