3EIGHTY5 12-0901 ETZ Wood Headphones with Mic  - Mahogany Driver Diameter: 50mm Frequency Response: 20-20,000Hz Microphone Sensitivity -58dB + 2dB Impedance: 32ohms + 15% Microphone Operating Voltage 4.5V Sensitivity: 115dB + 03db Microphone Impedance: 2.2K Max. input power: 50mw Cable length: 1.5m