Headphone Characteristics: Speaker Diameter 40 mm (neodymium magnets) Frequency Response 20 Hz–20 kHz Nominal Impedance 32Ω±5 Sensitivity 112dB±3dB Nominal Input Power 20mW (5V DC/150mA) Microphone Characteristics: Microphone Type Condenser Nominal Impedance 2.2 kilohms Frequency Response 100 Hz–10 kHz Sensitivity -42+/-3dB Weight 365g Cable Length 2m Connection USB connector