Logitech H340 USB Computer Headset with Microphone With digital sound. With a plug-and-play USB-A connection, the H340 USB headset microphone is easy to use and ideal for everyday use. The noise-canceling microphone cuts down on background noise and brings clear digital sound to VOIP and Skype calls. (1) Specifications and Details Specification Height: approx. 160 mm Width: 175 mm Depth: approx. 60 mm Weight: 0.1kg Cable length: 1.8 meters (2) Technical Specifications Microphone type: Bi-directional Input impedance: 22 ohms Sensitivity (Headphone): 115 dB +/-3 dB Sensitivity (microphone): -42 dBV/Pa +/- 3 dB Frequency Response (Headphone Mic): 20 Hz - 20 kHz Frequency Response (Mic): 100 Hz - 16 KHz (3) Compatibility Windows®, macOS or ChromeOS and all major calling platforms. Works With Chromebook Certified USB Port 1Type A Port or Adapter (4) Product List USB Computer Headset Microphone User Documentation