A4Tech FH200i 3.5mm Stereo HeadphoneSpecifications: • Brand: A4Tech • Model No: FH200i • Product Type: HeadphoneHeadset • Speaker Unit: 50 mm • Frequency Response: 20 Hz – 20 KHz • Sensitivity: 100 dB • Impedance: 16 ohmMicrophone • Frequency Response: 100 Hz-10 KHz • Sensitivity: -44 dBCable • Material: Tangle-Free Braided Cable • Cable Length: 180 cm • PC Extension Adaptor: 15 cm • Port: 3.5 mm