Superlux HD-681 F, Studio Headphones, Optimised for neutral playback, Semi-open, Circumaural, Dynamic, With self-adjusting headband for a good comfort, SPL: 98 dB, Impedance: 32 Ω, Frequency range: 10 / 30,000 Hz, Power consumption: 300 mW, 2.5 m cable with 3.5 mm stereo jack, Weight with cable: 275 g, Weight without cable: 230 g, Incl. adapter to 6.3 mm stereo jack and carrying bag