Ex display-LIKE NEW / 12 month warranty / 30 days rtn policy / item may comes repacked Be at one with your music Discover how the WH-1000XM4 headphones blend our most advanced noise cancelling with exceptional sound quality and a range of smart features for an unrivalled listening experience. The technology that makes it happen Dual noise sensor technology, featuring two microphones on each earcup, captures ambient noise and passes the data to the HD Noise Cancelling Processor QN1. Using a new algorithm, the HD Noise Cancelling Processor QN1 then applies noise cancelling processing in real time to a range of acoustic environments.
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