These were designed for a different set of headphones, but matched the impedance of the original Bose part. After replacing the driver, it seemed that the repair was a failure. The sound ...

While some may consider alternative models like the Apple AirPods Max, which retail for $399 (currently on sale at Amazon), ...

Bose is the leader in noise cancellation, and it doesn't get better than the QuietComfort Ultra and QuietComfort Headphones. But is the Ultra model worth the extra $80? We're here to help you decide.