Remember how Mad Catz scored the exclusive rights to produce Xbox 360 wireless headphones? Here's the deal: these cans don't need to be tethered to your controller for voice chat or plugged into a wall to charge. According to IGN, the new Mad Catz Warhead 7.1 will get everything it needs from a base station connected to your console. String USB and optical cables directly from the Xbox 360 to that tiny tower above, and you'll reportedly get enough 5.8GHz bandwidth to deliver virtual Dolby surround sound to four pairs of headphones at once -- plus wireless Xbox LIVE audio chat thanks to some native support from Microsoft. What's more, the USB base station will also give you an on-screen battery readout, and if the Warhead runs out of juice, you'll find a second swappable battery pack sitting in the base station's charger. If that sounds too rich for your blood, the Devastator will ditch the surround sound and rechargeable batteries while retaining the same connectivity and 50mm drivers of its premium brother. How much that'll cost you is still to be determined, though Mad Catz told IGN they'll all ring up under $300 this holiday.