Headphone Type: Dynamic, closed Magnet Tpe: Neodymium Driver Size: 40.0 mm Frequency Response: 10-20kHz Impedance: 63 Ohms Sensitivity: 106 dB/W/m Power Handling: 1,000mW Plug Type: Gold, Stereo Unimatch plug 1/4" and 1/8" Cord Length: 9.8 ft Weight: 8.1 oz