No wires, no restrictions. With JAM Transit Ultra, you’re free to move. Two separate earbuds fit snugly and comfortably into each ear, delivering up to 3 hours of play time with a single charge. When you’re done rocking, pop them back into their charging and carrying case for up to 7 full earbud charges. You’ll love that the case doubles as a backup battery for your mobile devices. Features Bluetooth 4.1 and wireless calling capability.