Seamlessly upgrades your iPhone 4, 4S to wireless charging
Wireless charging has been applied to a wide range of products, such as electronic toothbrushes. Now, charging your iPhone 4, 4S is as simple as putting it down! Just slide this sleeve onto your iPhone 4, 4S, and it will automatically work as a receiver that provides a seamless upgrade to Qi wireless charging. Simply place it on top of the Qi charging pad and it will start charging.