The QC Ultra deliver warm and powerful sound. Details fall by the wayside a little. The battery life is good, and they are among the best when it comes to noise cancellation: this is very effective and can be reduced in the app. There is also a transparency mode with natural sound.

Excellent noise cancelling, powerful sound and great wearing comfort - unfortunately, a constant hissing noise disturbs in quiet music passages.

The strength of the Bose QuietComfort Ultra undoubtedly lies in the convincing ANC system, which leaves the very decent sound almost unaffected. However, there is still room for improvement in terms of usability and workmanship.

Bose probably offers the most efficient ANC tested - but with slight noise. Good sound with a very comfortable fit and a good app.

Not every pair of Bluetooth headphones is suitable for everyone. Some sound great, others sit better in the ear when jogging. Some models shine with super-long battery life, others as a headset in the home office. You can find your personal test winner with the help of our database...