Stereo High Quality Headset LogiLink® HS0033 Specifications:Stereo High Quality Headset Connector Type: USB Impedanz: 32 Ω ± 10 % Sensitivity: 105 dB ± 3dB S.P.L @ 1 kHz Frequency: 20 to 20.000 Hz Integrated Microphone High wearing comfort Cable length: 2 m