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Understanding the indicator light

Applies to:

  • QuietComfort® 3 Acoustic Noise Cancelling® headphones

When the indicator light on the right earcup is illuminated, that means that the power is on. A flashing indicator light on the power switch tells you that the battery is in a low-charge state and will soon need recharging (the battery has less than five hours of life remaining when the flashing starts).

Note: When replacing a battery, make sure you charge the new battery for a minimum of two hours. And to maximise battery life, make sure that you fully charge the battery before storing it for an extended period of time.

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