The Sony MDR-7506 Professional Large Diaphragm Headphone is a large diaphragm foldable headphone designed for professional studio and live/broadcast applications. These large diaphragm foldable headphones feature a rugged construction a secure highly effective closed-ear design and a 40 millimeter driver unit for clean clear sound reproduction. Designed for professional studio and live/broadcast applications. Click here for a larger image 9.8 foot cord ends in a gold 3.5mm plug; 1/4-inch adapter included. Headband with generous padding for added comfort. Professional Sound A neodymium magnet provides excellent power-handling and 40-millimeter drivers deliver high-quality sound with a wide frequency response of 10 Hz - 20 kHz. Enjoy crystal-clear highs present mids and an extended low-end for accurate monitoring. Comfort and Isolation The MDR-7506s feature a closed-ear design which provides both comfort and outstanding reduction of external noises. Comfort is only enhanced by the generous headband padding. A 9.8-foot coiled cord provides more than enough slack for working in a studio without removing the phones whether youre the performer the engineer or both. Ac