the t.bone HD 880, Headphones, Ideal for PCs, interfaces, digital pianos and keyboards, Closed-back, Circumaural, With neodymium magnet, Impedance: 64 ohms, SPL: 104 dB, Rated power: 1000 mW, Frequency range: 20 - 20,000 Hz, Length of the cable: 3 m, Weight with cable: 245 g, Weight without cable: 196 g, Incl. adapter from 3.5 to 6.3 mm