Type: Tightly closed dynamic headphones Frequency Range: 5 to 30,000 Hz Impedance: 40 Ohm Maximum Input: 3,500 mW Output Sound Level: 107 dB/mW Unit Type: 50 mm dome Plug: 3.5 mm 3P mini plug (gold-plated) Weight: 270g (excluding cord) Accessories: 06.3 mm 3P plug adapter with screw & carrying bag Connection cord: 3.94 ft long single coiled cable (approx. 9.84 ft when straight)