These headphones feature 40mm neodymium magnet drivers that deliver the accurate frequency response and solid bass you need to make sound decisions when you're recording or mixing. The closed-back design of the ATH-M20x gives you superior isolation with minimal bleed — out or in. Also, the circumaural earpads give you cushy comfort during long sessions. An attractive value proposition indeed, Audio-Technica ATH-M20x headphones are the perfect addition to your studio.