Halo 4 Tritton Warhead 7.1 Dolby Wireless Surround Headset for Xbox 360 (Xbox 360) Limited Edition Halo 4 Headset for True Wireless Xbox360 chat - no cable between the gamepad and headset 7.1 Dolby Headphone Surround Sound for the most immersive gaming experience Dual rechargeable battery packs allow 24/7 Gaming Ergonomically designed for extreme comfort and extended gaming sessions Premium 5.8GHz wireless technology prevents interference with wireless gamepads and other devices and delivers crystal-clear audio