Sony MDR7506 Professional Stereo Headphones are ideal for sound monitoring in recording studios, radio, film production, video, electronic news gathering – and virtually any application where high quality sound is required. The closed-ear design MDR-7506 is outrageously popular in pro and home recording studios. It features a rugged design, convenient folding construction, 40mm driver units, gold connectors and a professional-quality OFC (oxygen free copper) cord. Sony 7500 Series headphones offer a practical range of choices for everyone from the casual user to the studio pro. These include the MDR-7506 which is lauded by many professional studios and broadcasters. Features Rugged Design: Proven to be reliable in the toughest situations. Folding Construction: Compactness in storage 40mm. Driver Unit: For clear, high quality sound reproduction. Closed-Ear Design: Comfort and reduction of external noise interference. Stereo Unimatch Plug: 1/4 inch and 1/8 inch applications. Gold Connectors and OFC Cord: Reliable and stable signal connection and transmission. Supplied Soft Case for protective storage