BEST SHOPPER - XBOX 360 Headset with microphone - White Brand New NON-OEM Retail Packing. Let you draw up the strategy with member of team, the interference opponent or while playing favourite game with the friend chat Record for friends or family and stay the speech message through the free X-Box Live letter, can also replace telephone and good friend contact Open loudly or adjust the small voice, make experience plersonally the most vigorous game career to make possible for the USA: Frequency range: 20-20000 Hz, Sensitivity: 5.4 +/- 5 dB, Impedance: 32 Ohm, 2.5mm jack.