The Extension Cord With USB (Round) is compatible with iPhones, iPads, Samsung devices and other electronic devices that have a USB interface. The size of it makes it portable for you to carry while traveling. Instantly convert one standard socket into multiple independent sockets with this innovatively designed, Extension Cord unit. Enabling a variety of electronic devices to be used at any one time. Ideal to use around the home or office where there are many electrical items, but simply not enough sockets.