OK I texted him, he won't be home till after midnite .... or at least until peeps stop ordering pizzas
he loves it.... has had it 3since December 2011
I lasts about 3 - 4 hours on battery but also works plugged in.... used to get 5 - 6, sometimes more.
As for sound quality, most descriptive thing I can say is he went from the $355 Sennheisers to this and he ain't complaining about the sound
And no more having the thing ripped off his head when standing up or yanking the cord outta the casing. He is really impressed with the noise cancelling and they are much lighter than the Sennheisers. Mic is great; "buttons can do almost anything" and are very easy to manipulate.
As you might imagine.... having them from age 16 to 19 and owning over 200 games, he gets lotta use outta them. As I mentioned, he has the Logitech Z5500 series speakers and is thinking of selling them cause never uses.