ATH-M40X   Pure. Professional. Performance. The M-Series ATH-M40x professional monitor headphones are tuned flat for incredibly accurate audio monitoring across an extended frequency range. Your studio experience is enhanced with superior sound isolation and swivelling earcups for convenient one-ear monitoring. Engineered with pro-grade materials and robust construction, the M40x excels in professional studio tracking and mixing, as well as DJ monitoring. More About the M-Series Headphones Critically acclaimed M-Series professional monitor headphones deliver accurate audio and outstanding comfort, perfect for long sessions in the studio and on the go. Contoured earcups seal tightly for excellent sound isolation, with minimal bleed. And the pro-grade materials are durable, yet comfortable. Find out why online reviewers, top audio engineers, and cult followers agree that M-Series is an unmatched combination of audio and build quality that gets the job done. Hour after hour, year after year.   FEATURES Cutting-edge engineering and robust construction 40 mm drivers with rare earth magnets and copper-clad aluminium wire voice coils Tuned flat for incredibly accurate sound monitoring across the entire frequency range Circumaural design contours around the ears for excellent sound isolation in loud environments 90° swivelling earcups for easy, one-ear monitoring Professional-grade earpad and headband material delivers more durability and comfort Collapsible for space-saving portability Detachable cable (includes 1.2 m – 3.0 m coiled cable and 3.0 m straight cable) For professional studio tracking and mixing, as well as DJ monitoring   Headphones Type Closed-back dynamic Driver Diameter 40mm Frequency Response 15 – 24,000 Hz Maximum Input Power 1,600 mW @ 1KHz Sensitivity 98 dB Impedance 35 ohms Weight 240g (without cable) Cable 1.2m-3m coiled, 3m straight cablesConnector Gold-plated stereo 1/8” (3.5 mm) connector with strain relief Cable – Detachable Yes Magnet Neodymium Voice Coil CCAW (Copper-clad aluminum wire) Folding/collapsible Yes Accessories Included Screw-on 1/4” adapter, pouch