Headphones with enhanced frequency response, accurate audio over an extended range, closed-back circumaural design, supra-aural coupling, closed-back transducer, 40mm neodymium driver, 32 ohm nominal impedance, sensitivity: 95 ±3 dB, frequency bandwidth : 10Hz-28kHz, max power: 400mW, 180cm cable, 3.mm stereo mini jack plug with 6.3mm adapter, weight: 235g with cable, higher performance with professional audio devices, also optimized for Use at home and in recording studios.