TaoTronics HiFi Stereo Wireless Over Ear Deep Bass Headset w/CVC Noise Canceling Microphone 30 Hour Playtime Comfortable Earpads for Travel Work TVActive Noise Cancelling Wireless Headphones: ANC technology cancels outer noise, allowing you to enjoy your audio on the subway, bus, plane, and other noisy situations Adjustable & Comfortable: Ear cups swivels up to 90; ear pads are made of super soft protein; and an adjustable headband suits all head shapes and sizes 30 Hour Playtime: Over the ear headphones stream music for up to 30 hours per charge; connect the included audio cable for stable,