The Audio-Technica ATH-M50x Sound-Isolating Monitor Headphones (Black) are designed for use in critical studio mixing and tracking as well as for DJ monitoring applications. They feature 45mm Neodymium drivers with copper-clad aluminum voice coils that provide an extended frequency response from 15Hz to 28kHz. The headphones have a circumaural, around-the-ear design that provides sound isolation in loud environments. The ATH-M50x's ear cups can be swiveled 90-degrees, allowing for single-ear monitoring. The headphones have a detachable single-sided cable system, and a 3-meter coiled cable, a 3-meter straight cable, and a 1.2-meter straight cable are included. When not in use, the ATH-M40x can be folded down and stored in the included carry pouch. Additionally, an Audio Technica Case for the headphone is included. The Case is made out of Cordura fabric which makes it very durable. The Case is resistent to tears, scuffs and abrasions. It is designed for living and built to last a lifetime. This Case is Durable; Versatile; Reliable! Its a black color case with beuatifully trimmed sky blue colored double zipper. The AudioTechnica brand label on the case is also in the beautiful sky blue color. Case comes with a metal clip to hang it conveniently anywhere.