The sound is okay, albeit with a little more bass than usual. Compared to AKG701 lacks something on the heights. Ever come further up the frequency band all less detailed on the ears. I particularly noticed is that with harp music, which sounds a bit boring (ie something is missing). The goose bumps when Janet Jackson's slower pieces also comes not quite.
What I would hope is that you could turn off the speech filter. Thus, calls to the colleagues were no longer audible. Here I have to say that women's voices are clearly heard as men's voices. Even the tinkling of cutlery in the kitchen is clearly audible.
I miss a cable for Android phones, some buttons are not working.
The headset itself has been turned off in quite a big attenuation. Turned wirds course even better.
My girlfriend says she would get headaches (after about listening 2minutes). I can not confirm (after about 30h hear).
The fit is perfect, the storage okay (you should disconnect the cable, otherwise it bends -> 30 is a new cost). The solution with normal AAA batteries (I use rechargeable batteries) I find great!
The last star I'd forgiven when the headset is not rushing yourself. But for the purpose of uninterrupted music listening, if your neighbor mows lawn, you have to concentrate on work or at home, the PC rushes too loud, the headphones are of good use!