Professional-Grade Sound Precision: Equipped with 40mm dynamic drivers featuring rare earth neodymium magnets and copper-clad aluminum wire voice coils, the ATH-M40x delivers a flat, accurate frequency response from 15 Hz to 24 kHz. This ensures precise sound reproduction across the full audio spectrum, ideal for studio monitoring, mixing, or critical listening where clarity and detail matter most.. Comfortable, Durable Design for Extended Use: Designed for long sessions, these over-ear closed-back headphones provide excellent sound isolation while reducing ear fatigue. With pro-grade cushioning on both the headband and earpads, plus a robust foldable frame, they combine durability with comfort. The 90° swiveling earcups support one-ear monitoring, making them perfect for DJs and audio professionals on the move.. Versatile Connectivity with Detachable Cables: Two detachable, single-sided cables come included: a coiled 3.9 to 9.8-foot cable for studio flexibility and a straight 9.8-foot