I've been wearing the X11's since springtime and I have to second all that is said above. I think I've spent more on batteries so far that I did for the headset!
If you're going to spend that kind of money on a headset just cough up the extra $200 and buy the bose. DC dropped the ball on this one (and all their other attemps at ANC headsets).
If you're going to spend that kind of money on a headset just cough up the extra $200 and buy the bose. DC dropped the ball on this one (and all their other attemps at ANC headsets).