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QuietComfort® 3 Acoustic Noise Cancelling® headphones

Sold from 2006 - 2015

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Replacing the battery in your product

The battery in your product can be removed so you can insert a new battery if your battery weakens or dies. Find out how to access and replace the battery.

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. Grasp the sides of the battery (just above the earcup indentations) and pull it away from the earcup
  3. Align the new battery and press it into the earcup until you feel a soft click.
Attaching battery
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