This convenient, portable USB power bank charger is designed to slide right into your pocket with its ultra-slim design. It features LED status lights to let you know when the unit is charging and has no memory effect. Want to know how much charge your Power Bank has left? Simply press the power button and the LED status lights indicate the brick's current capacity, so you always know when you need to recharge. Charge smartphones, tablets, music players, digital cameras and other portable devices while on the go, without haven't to track down a power source.