Fostex T50RP MK3 Professional Studio Headphones, Semi-Open Refined Fostex proprietary Regular Phase (RP) diaphragm driver using copper foil etched polyimide film and powerful neodymium magnet Maximum input level of 3000mW to comply with various professional uses Semi-open for flat and clear sound Low repulsion ear pad and head pad for maximum comfort Comes with 3m 1/4-inch plug detachable cable for best serviceability and 1.2m mini plug cable for portable audio use