there be a lot of detailed review over here , so I just add my personal experience after have those headphone for a long time . those be just great , long battery life and the most important feature great overall sound . those be great for music and the surround effect add a lot for movie as well . we have a decent 5.1 configuration and we find ourselves more and more use those headphone instead , specially when we watch poor encode movie . I be not audiophile , but I can tell a difference between different quality and I find those be at top of all headphone that I have include wire one . the problem that we find : each pair of headphone can be pair only with one base at the same time . repair process be not comfortable to do it all the time , so if you have two basis you need to have different headphone for it . overall great purchase and really recommend product in spite of its relative high price tag .