ATH-M30x Professional monitor headphones Technical Information With enhanced audio clarity and sound isolation, the ATH-M30x professional monitor headphones are tuned for highly detailed audio. Featuring strong mid-range definition, these versatile monitoring headphones are ideal in a variety of situations. Designed primarily for studio tracking and mixing, they offer added features for increased portability, making them a great choice for field recording. Driver 40 mm Magnet Neodymium Voice Coil CCAW (Copper-clad aluminum wire) Frequency Response 15 - 22,000 Hz Maximum Input Power 1,300 mW at 1 kHz Sensitivity 96 dB Impedance 47 ohms Cable 3.0 m (9.8'), left-side exit Weight 220 g (7.8 oz) without cable and connector Included Accessories 1/4 (6.3 mm) screw-on adapter, pouch