The way I see it is that the MDR1000X is last years top model of Sony, where the WHH900N is a segment lower I have compared the MDR1000X and the H900N's predecessor MDR100ABN in the store The 1000X was lighter, had a much better fit and its ANC was clearly of a higher level The 100ABN was sturdier though, probably can handle more clumsinessThe MDR100ABN ain't half bad at that job, but the MDR1000X makes a few key changes to the design, ditching the top plastic parts of the band for a more streamlined metal finish, which reducesThe Sony MDR1000X headphones began what has become a dynasty of topnotch Sony wireless noisecancelling headphones There's now a newer model, in the form of the WH1000XM3, not to mention new offerings from Bose and Sennheiser, but the original Sony wireless headphones remain a great bet, especially if you can find a good deal Rhinenet Replacement Audio Cable Compatible For Sony Mdr Xb950bt Mdr 1000x Wh 1000xm2 Wh 1000xm3 Mdr 100abn Mdr 1a Noise Cancel