Having gone through dozens of headsets over the past years -- each iteration an exploratory phase on what makes headsets so hit-or-miss -- I can honestly say that I've never seen a headset with what is effectively a "rumble pack" built-in.
Genius, the humble makers of several gaming peripherals, has just announced their new HS-G700V Cavimanus Virtual 7.1 headset. The headset apparently vibrates (this can be disabled) when certain events trigger within games -- explosions, sprinting, stuff like that.
Aside from the novelty of the vibration feature, the headset stakes its claim on audio perfection with full 7.1 surround, circumaural speakers, attempting to provide an immersive gaming experience. Here are the full specs:
Full Specifications
Sensitivity: 96dB
Frequency Response: 20Hz~20KHz
Cable Length: 2.5m
Mic Sensitivity: -39+/-3dB
Mic Directionality: Uni-directional
The Cavimanus is coasted in plush foam to help ease the burden of, you know, such heavy equipment as headsets (we gamers are quite strong people). I must say -- it does look comfy.
Keep an eye on the home page for more updates on this headset. It's safe to say that many of us will be most interested in the rumble feature, so we'll try to get a review up covering all of this.
The MSRP is ~$80. You can view the Cavimanus product page here: http://www.geniusnet.com/wSite/ct?xItem=51781&ctNode=3608&mp=1