H390 Usb Computer Headset

Logitech USB Headset H390 with Noise Cancelling Mic Padded headband and ear pads. Frequency response (Microphone): 100 hertz - 10 kilohertz Rotating, noise canceling microphone. Sensitivity (headphone) 94 dBV/Pa +/ 3 dB. Sensitivity (microphone) 17 dBV/Pa +/ 4 dB Convenient inline volume and mute controls