Logitech H111 Stereo Wired Headset with Microphone 3.5mm Multi-Device Headset Microphone Audio is as clear as you need it to be.The H111 features a standard 3.5mm audio plug and is compatible with most operating systems and platforms. Specifications and details (1) Technical Specifications Height: 162 mm Width: 144 mm Depth: 46 mm Weight: 0.074 kg Cable length: 2.35 meters (2) Technical Specifications Microphone type: Unidirectional Sensitivity (headphones): 32 ohms Sensitivity (Headphone): 100 dB +/-3 dB Sensitivity (microphone): -58 dBV/microbar, -38 dBV/Pa +/-4 dB Frequency Response (Headphone Mic): 20 Hz-20 kHz Frequency Response (Microphone): 100 Hz-16 kHz (3) Compatibility Windows®, macOS or ChromeOS and all major calling platforms. Chromebook certified. Single 3.5mm plug (4) Product List Stereo Headset Microphone User documentation