High quality headset with flexible microphone and USB connection.Features:1) soft headband2) soft earcushions3) good sound quality 4) flexible microphone Parameters:1) Frequency Response: 20Hz-20 kHz 2) Speaker Impedance: 32 Ohm 3) Driver Unit: 40mm 4) Rated Power: 20mW 5) Power Handling Capability: 100 mW 6) Cable Length: 2.5M +/- 3CM7) Sensitivity: 115dB+/- 3dB8) Microphone: 6×5mm-58dB+/-3dB 9) Plug: USB