Logitech H540 Headset

H540 USB Computer Headset features plug-and-play connectivity so you can instantly enjoy music, movies, and calls in rich, digital stereo sound. On-ear controls and mute indicator light make it easy to see when the mic is muted.DimensionsHeight: 180 mmWidth: 245 mmDepth: 78 mmWeight: 0.12 kgCable length: 1.8 mTechnical SpecificationsMicrophone Type: Bi-directionalInput Impedance: 20 OhmsSensitivity (headphone): 115 dB +/-3 dBSensitivity (microphone): -42 dBV/Pa +/- 3 dBFrequency response (Headset): 20 Hz - 20 kHzFrequency response (Microphone): 100 Hz - 16 KHz