Adesso Black Xtream H5U Stereo USB Multimedia Headphone/Headset with Microphone

Adesso Black Xtream H5U USB Connector Stereo USB Multimedia Headphone/Headset with Microphone Type: Over the Ear Driver Unit: 40mm Frequency Response: 20Hz-20KHz Input Impedance: 32 ohms Sensitivity: 105 dB +/- 3 dB at 1kHz Cord Length: 6ft. (1.8m) Weight: 0.45 lb.