A-Audio A21 Over Ear Wireless Bluetooth Headphones, Chrome Bluetooth 4.0 functionality for wirelessly connecting to mobile devices with range of up to 30 feet. Can also be used in wired mode. Closed circumaural ear cups for isolated sound includes discreet panel for remote control of your music including volume up, volume down, play, pause. Complete with chrome-plating, steel construction with Zinc hinges. Premium soft leather and memory foam padding for comfortable long wear. Active noise cancellation & Audio mode Comes with Luxe travel case, warranty card, charger and polishing cloth.