Genius HS-04S Headset with Noise Cancellation Microphone

Product Description:
Type: Head-band Sensitivity: 100dB +/- 3dB @ 1KHz Frequency response: 20Hz - 20KHz Impedance: 32 ohm Interface: 3.5mm 4-pole combo jack Volume Control:Yes Noice-Cancelling Mic :Yes Cable length: 2m