I have a Vengeance 2000 Wireless headset.
I went wireless after my third headphone wire murder. It's a good bit of kit, I'd buy them again in a heartbeat. They're really quite comfy too, so I don't have to worry about taking them off every hour or so to let my ears get their circulation back.
Sounds good and as far as I know, the mic works nicely since people understand what I'm saying on teamspeak!