Marathon Djh-1200 Professional High Performance Stereo Dj Headphones Driver Unit: 57mm* Impedance: 64 ohms* Sensitivity: 107dB +/- 3dB [S.P.L.at 1000Hz] Frequency Response: 5Hz to 30000Hz* Maximum Power: 3500mW* Magnet: NdFeB Plug:3.5mm Stereo Plug* Cord Length: 4M +/-mm* Includes carrying bag, 6.3mm gold plated adaptor,6.3mm right angle adaptor Ear cushion (1 pair) included