Hercules HDP DJ45, DJ Headphones, Closed-back, Pivoting earpieces: Each earpiece rotates via 2 axes: Vertical: pivots 90° to adjust to any position; Horizontal: rotates +/- 180°, Sensitivity: 95 dB at 1 mW, Frequency range: 20 - 20,000 Hz, Impedance: 60 Ohm, Driver diameter: 50 mm, 2 m Cable with 3.5 mm stereo mini-jack plug, Weight: 340 g, Colour: Black, Includes a 6.35 mm stereo jack adapter