Bought these just before Christmas and I was not disappointed, they are excellent. The noise cancelling is superb, i use these on a noisey commute and they shut out the bus engine noise and the passengers brilliantly. Overall sound quality is top notch, they are really comfortable to wear for long periods and the battery life is excellent.

An absolutely brilliant set of headphones which has amazed everyone. The features such as acoustic modes and using the microphones to 'hear' are fantastic on their own. Adding high-definition audio playback AND noise cancellation to these headphones however puts them into a new playing field, where they're the king. 24-bit/48KHz HD audio from the iPhone to these with NC on and you're in your own, private, world hearing nothing but pure audio, the noise around you gone, and you notice sounds you've never heard in albums you've listened to for decades. Beautiful, rich, defined audio as good as or better than Sennheiser's efforts and puts the processed sound of the Bose to shame. Wired these are as good as if not better than their competition as well. These are simply amazing headphones producing wonderful audio and tuning the world out at the same time.

Amazing product. Produces great highs and overall sound is AWESOME. Battery life was allways a concern when looking to purchase my first wireless headphones, however the battery life on these are very long lasting. It is a little pricey, but those who would want to enjoy the sound of their music will find it an investment rather than a purchase. One flaw - ear cups are not replaceable.