Brand: TUCCIHeadphone Unit: 40mm (1.57in) Frequency Range (Headphones): 20Hz – 20,000Hz Max Input Power: 100mw Plug: USB Connector Microphone Type: Condenser Microphone Unit: 9x7mm Microphone Frequency Range: 50Hz – 1600Hz Microphone Impedance: 1.2ko Cord Length: 2.0m Features: Ergonomic Design, Quality Build, Unilateral Cord Design