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QuietComfort® 2 Acoustic Noise Cancelling™ headphones

Sold from 2003 – 2009

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No audio from product

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

On the audio cable, try changing the Hi/Lo switch position.

The Hi/Lo switch on the audio cable connector is useful if audio is too loud or too quiet in the headset, even after adjusting volume. Be sure it is set properly. For more info, see Setting the audio attenuation Hi/Lo switch.

Check the volume level on the source.

Its possible the volume is too low or muted. Increase the volume gradually

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.

Remove and reseat the input cable at both ends.

For the best sound quality the input cable must be securely connected at both ends. This may require an extra amount of pressure to properly seat the cable into the earcup. Carefully, but firmly, press the connector into its socket at the earcup until a slight click is felt.

Try a different app.

If the issue only occurs with a particular app, it is likely related to the app or app settings.

If connected, bypass any adapters or extension cables.

If your product connects to the device using an extension cable or adapter, disconnect the extension cable or adapter to determine if the issue is related to it.

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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