The Duracell Powermat PowerSnap Kit for iPhone 5/5s (Black) is used for instant backup power when you need it without the bulk. Drop the SnapBattery onto any wireless charging surface to charge it up. Then slip it into your pocket for twice the power all day long. The PowerSnap Kit and iPhone 5 or 5s sit naturally and comfortably in your hand, hour after hour. Get the power of two phones without feeling like you're carrying them.