TBS-2255-01, FG, EAR FORCE X12 Gaming Headset Amplified Stereo Sound. The X12 is the definitive headset for gamers seeking amazing game sound, crystal-clear communication and enhanced comfort -- all at an unmatched value. The X12 features massive 50mm speakers, delivering superior audio quality with crisp highs and deep, rumbling lows. The in-line amplifier puts you in control, with quick access to independent game and chat volume controls and variable bass. USB Powered - No batteries required.