Type: Closed-back Dynamic (Headphone) Cardioid Dynamic (Microphone) Driver Diameter: 40 mm (Headphone) Magnet: Neodymium (Headphone) Voice Coil: Copper-clad aluminum wire Frequency Response: 20-20,000 Hz (Headphone) 40-20,000 Hz (Microphone) Maximum Input Power: 1,600 mW at 1 kHz Sensitivity: 100 dB (Headphone) -57 dB (1.4 mV) re 1V at 1 Pa (Microphone) Impedance: 65 ohms (Headphone) 560 ohms (Microphone) Weight: 264...