Provides you with 4 extra charges. Slim 0.5" wide design is perfect for travel. Hyper-charge provides ultra-fast charging up to 65% faster. Maintains battery power for up to a year. Has the highest level of battery safety. Power bank will recharge up to 50% faster. Recharges via a micro-USB cable. Smart-sense ensures it is compatible with smartphones and USB devices. Built-in fabric loop. Dimensions: 4.7" x 2.8" x 0.5". Includes: Charger. Micro-USB recharge cable. Quick start guide..