Sony MDR-7506 (MDR-7506/QAE) is a professional over-ear wired headphone designed for studio and home audio use. It features 40 mm neodymium drivers for powerful and detailed sound. The frequency response is 10 Hz – 20 kHz. Its closed-back design reduces external noise for focused listening. It comes with a fixed 9.8 ft cable and a 1/4 inch adapter, and it is foldable for easy storage and travel.