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 tracking mixing or field recording. The closed-back design of the ATH-M30x gives you superior isolation with minimal bleed while the circumaural earpads give you cushy comfort during long sessions. Factor in their space-saving collapsible design and the Audio-Technica ATH-M30x headphones are a total no-brainer.