Professional stereo headphones with dynamic boom microphone. Perfectly closed system for ambient noise suppression. Excellent sound characteristics, very comfortable to wear. Flexible microphone boom, folding, continuously adjustable. Padded ear cushions and headband. 2 m cable with single-sided cable inlet and 3,5 mm plugs, supplied with two 6,3 mm adapters. Headphone driver: neodymium, 40 mm. Type of transducer: dynamic. Max. input power: 100 mW. Transmission range, headphones: 20 - 20000 Hz. Nominal impedance, headphones: 250 Ohm. Headphone sensitivity: 117 dB/1 mW. Transmission range, mic.: 120 - 6000 Hz. Nominal impedance, microphone: 600 Ohm. Microphone system: dynamic, cardioid. Microphone sensitivity: 1.8 mV/Pa/1 kHz. Weight: 375 g. Colour: Black