The black ATH-M20x Monitor Headphones from Audio Technica are designed for both tracking and mixing applications and feature 40mm Neodymium drivers with copper-clad aluminum wire voice coils tuned for detailed low-frequency reproduction. The headphones have a closed-back, circumaural, around-the-ear design that provides sound isolation. Their 3-meter long cable has a single-side exit to help reduce tangles while working. A 1/4" adapter is included. Key Features 40mm Neodymium Drivers Circumaural, Sound-Isolating Design Tuned for Low-Frequency Performance Single-Sided Cable Exit What's in the box 1x Audio-Technica ATH-M20x Monitor Headphones (Black) 1x 1/4" Snap-On Adapter