Headset Logitech H151, Mic, 1 x mini-jack 3.5mmDIMENSIONSHeight x Width x Depth:200 mm x 245 mm x 65 mmWeight: 0.08 KgSYSTEM REQUIREMENTSWorks with common calling applications across almost all platforms and operating systems.Analog connection with 3.5mm audio in and audio out jacksTECHNICAL SPECIFICATIONSInput Impedance: 22 OhmsSensitivity (headphone): 122dB +/-3dBSensitivity (microphone): -44dBV/Pa +/- 2.5dBFrequency response (Headset): 20Hz - 20kHzFrequency response (Microphone): 100Hz - 6.50kHzCable length: 1.8mPACKAGE CONTENTSHeadsetUser documentationhttps://www.logitech.com/en-roeu/products/headsets/h151-stereo-headset.981-000589.html