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QuietComfort® 3 Acoustic Noise Cancelling™ headphones

Sold from 2006 – 2015

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Noise cancellation is not working

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.

Do you hear static or distorted audio while in noisy environments?

If the audio is distorted while in loud environments such as construction zones or during take off on an airplane, see Crackling sound heard in noisy environments.

Move away from any hard surfaces.

Reflected sound (caused by using the headset close to a hard surface – like a wall) will negatively affect noise cancellation.

See if the light is lit on the right earcup.

To produce sound and cancel noise, they headset must be powered on. Flip the switch on the right earcup to the on position: If the red light does not turn on, see No power.

Be sure the earcups are tightly seated against the head.

Glasses, earrings and hats may prevent the headphone cushions from forming a tight seal around the ear. Remove any of these items and retest the noise cancelling feature.

Be sure the cushions are securely attached to the earcup.

If the ear cushion is not affixed to the ear cup properly, the noise reduction or sound quality may be affected. For more information, see Replacing the ear cushions.

Be sure the headphone openings are clean and free of debris.

Check for blockages in the headphone mesh grille and headphone opening. Excessive debris can result in low audio, poor sound quality or missing audio channels.

Check if the battery has charge.

If the rechargeable battery does not have enough charge, it will not power your product. For more info see, Checking the remaining battery charge.

Your product may need service.

If the steps provided do not resolve your issue, your product may need service. Follow the link below for more information on how to service your product. Depending on your product and region, you will be provided a contact number or the ability to setup service online.

Click here to start service
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