Designed for studio, broadcast and mobile applications, the ATH-M60x on-ear professional monitor headphones utilize the same proprietary 45 mm large-aperture drivers found in the legendary ATH-M50x headphones, delivering exceptional clarity throughout an extended frequency range with accurate bass response.   The low-profile, closed-back, on-ear design provides excellent sound isolation and a great fit, which is enhanced by the exceptional comfort and durability of the memory foam earpads and headband. The headphones come with three interchangeable cables (1.2 m - 3.0 m coiled, 3.0 m straight, and 1.2 m straight – each with a 3.5 mm (1/8') mini-plug), a 6.3 mm (1/4') screw-on adapter, and a protective carrying pouch. Specifications Headphones Type Closed-back dynamic Driver Diameter 45 mm Frequency Response 15 - 28,000 Hz Maximum Input Power 1,600 mW at 1 kHz Sensitivity 102 dB Impedance 38 ohms Weight 200 g (7.1 oz), without cable and connector Cable Interchangeable cables: detachable 1.2 m - 3.0 m (3.9' - 9.8') coiled cable, detachable 3.0 m (9.8') straight cable and detachable 1.2 m (3.9') straight cable Magnet Neodymium Voice Coil CCAW (Copper-clad aluminum wire) Accessories Included Protective carrying pouch, 6.3 mm (1/4') screw-on adapter