The wireless headset performs the same task as the wired headset, but connects using the same 2.4 GHz wifi technology as the wireless controller, rather than by a physical connector, allowing it to function within a 30 ft/9 m range (approx) and can be used with or without a controller connected to the console. Up to four wireless headsets can be used simultaneously on a single Xbox 360. The headset features a built-in rechargeable battery, which lasts up to 8 hours, and comes with a USB charger and an instruction manual. The headset fits over either ear and comes with two sizes of removable ear grips for a better fit.