AKG K845BT Black over ear bluetooth headphone - over-ear, 2D-folding mechanism, closed back, 32 ohms rated impedance, 102 dB efficiency, frequency response: 20 - 20000 Hz, 50 mW maximum input, 1,2 m removable cable with 3,5 mm plug and USB charging cable included, weight: 288 g (without cable), color: black