Charge GoPro batteries twice as fast as standard USB cable via computer; Dual USB port quickly charges up to two cameras at once; 1 amp per port for a quick charging solution; Simultaneously record video or photos while charging; Interchangeable AC plugs for US-, UK-, EU- and AU-style wall sockets; Also works with most devices that can be charged via USB; Compatible with all GoPro Cameras; :: Unisex > iPod Accessories Size: one size.