Superlux HD-651 Black, Headphones, Circumaural, Closed, Dynamic, Neodymium Magnet, Sound pressure level: 98 dB, Impedance: 32 ohms, Frequency response: 20 - 20,000 Hz, Power handling: 200 mW, Cable length: 2 m, 3.5 mm stereo jack, Weight with cable: 185 g, Weight without cable: 149 g, Colour: Black, Adapter to 6.3 mm stereo jack (included)