Great music starts here. Audio Technica ATH-M40x Professional Monitor Headphones are the perfect companion to studio-savvy engineers up-and-coming producers and DJs on the move. Their closed back circumaural design fits snugly around the ears reducing unwanted background noise whilst keeping you comfortable after long hours out in the field or in the studio. That means accurate audio reproduction and an enhanced listening experience. Prepare to take your mixes masters and tracking to the next level. The ATH-M40x Headphones get their pristine aural character from two 40mm drivers. Each one is tuned flat so you can hear every detail across an extended frequency range. This is the definition of outstanding performance.