Trust MULTI FUNCTION HEADSET 410 BASS. Headphone frequency: 40 - 20000 Hz, Headphone sensitivity: 85 dB, Impedance: 2200 Ом. Microphone frequency: 20 - 16000 Hz, Microphone sensitivity: 60 dB. Dimensions (WxDxH): 190 x 150 x 180 mm, Weight: 0.4 kg. Cables included: USB. Minimum system requirements: 3,5mm mini jack audio output for headphone , Compatibility: Multi