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Noise cancellation is not working | Bose QuietComfort Ultra Earbuds
Resync the earbud connection
- Place both earbuds into the charging case. Keep the lid open. The earbud status light will illuminate when the earbuds are inserted into case. If the status light does not light up, press downward on the buds to ensure they are making a solid connection with the charging pins.
- Close the lid on the case.
- When the status light on the front of the case stops flashing, open the lid, remove just the right earbud, and place it into your right ear.
You should hear the welcome tone. - Place the left earbud in your ear. You should hear the welcome tone and can continue using your product.
Be sure you're wearing the earbuds correctly.
A proper fit is important for comfort and sound quality. If the earbuds are not worn properly or positioned incorrectly, audio and microphone performance may be affected. See Wearing and adjusting your earbuds for more details.
Do you hear static or distorted audio while in noisy environments?
In very loud settings—such as airplane takeoffs, concerts, emergency sirens, or construction zones—your headphones' noise-cancelling microphones can become overwhelmed, which may cause brief crackling or distortion. This can happen even in Quiet or Aware mode.
It’s similar to when someone talks too loudly into a phone—the sound gets distorted until they lower their voice. Your headphones react in the same way to intense external noise.
This is normal and doesn’t damage the product. To reduce it, try moving away from the loud source when possible. For example, on a plane, sitting farther from the engines can help.
Reset your product.
Much like rebooting a smartphone, your product might need to be reset on occasion to correct minor issues. For more information, see Resetting your product.
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