There's not much choice in the world of noise cancelling bluetooth headphones, so I was pleased to find that Sony made a relatively affordable pair, having previously owned sony corded headphones. The noise cancelling seems to focus mainly on rumbles or low frequencies and is very noticeable in a car. It doesn't do much to screen out higher frequencies, such as speech, though it does reduce the level. Sound quality is good to my untrained ears and copes with a range of music. Pairing is very simple if you have a NFC-enabled phone and not much more difficult when done the 'traditional' bluetooth way. They seem solidly built, but don't come with a case or bag, which would have been handy.

I bought this headphones because I wanted a better noise cancelling headphones for travelling. I owned a pair of mdr-nc7 and they were great (up to 88%) so I thought zx750bn would be even better since it cancels up to 98% of the noise. Unfortunately, it makes little difference, if not worse, than the mdr-nc7. I tried it on buses and trains and the background noise could be heard pretty clearly still. The sound quality was acceptable but not great. The bass was the weakest out of all the Sony headphones and earphones I owned (MDR-EX50LP and MDR-NC7). This was rather disappointing as zx750bn costs a lot more than mdr-nc7. On the plus side, the wireless feature was great. The NFC works fantastically, all you need is a quick touch of your phone on the headphones to connect them.

The sound quality is great, but pairing can be a bit of a problem