These 'phones 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. Factor in their small price tag, and the Audio-Technica ATH-M20x headphones are a total no-brainer.