Superlux HD-681, Studio Headphones, Linear Reproduction, Semi-open, Circumaural (full size), Dynamic, Self-adjusting Headband, Peak SPL: 98 dB, Impedance: 32 Ohm, Frequency Range: 10 - 30000 Hz, Maximum Power: 300 mW, 2,5m Cable with 3,5 mm Stereo mini-jack, Weight (including cable): 277 g, Weight (excluding cable): 235 g, Including 6,3 mm jack adapter and carry pouch