QuietComfort® 15 Acoustic Noise Cancelling® headphones

Sold from 2009 - 2014

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No audio in one ear

If sound is missing from the left or right ear while listening to your product, try the following:

Remove the device from its case or protective sleeve (if applicable).

If a case or protective sleeve is on your device, try removing it to determine if it is preventing the headphones plug from making a full connection.

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.

Try connecting a different audio device.

If available, connect another audio device using the same cables and connections to determine if the issue is related to the first device or its settings.

Try a different app.

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

Try playing different types of media.

Different media types might produce different quality sound. For example, Podcasts, music stored locally on your phone, MP3s, streaming music services (Spotify, Pandora), videos on your device or stored in the cloud, etc. can all vary in quality. Try different media to determine if the issue is specific to certain media.

Check the condition of the headphone cable.

If the plug or any part of the cable for your headphones is damaged, you can replace the cable.

Clean both ends of the audio cable with isopropyl alcohol.

The connectors at both ends of the audio cable may have a build-up of debris or corrosion. Apply a small amount of isopropyl alcohol to a cloth and wipe the metal connectors. Dry the connectors completely, then reconnect the cable try again.

Plug in a different pair of headphones.

Connect another pair of headphones to the audio device to determine if the issue is with the device or its settings.

Be sure the connected device supports a 4-conductor headphone plug.

One of the four rings on the 1/8" (3.5 mm) plug on your product is for the microphone. Most devices without microphones have a 3-conductor jack. With some of these devices, inserting a 4-conductor plug can cause poor or partial audio, loss of voices in music or it can prevent the built-in device speakers from muting when headphones are connected. If these issues occur, consider purchasing a 4-to-3-conductor adapter.

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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