Power Bank, 12000mAh Vinsic Genius External Mobile Battery Charger Pack, 2.1A USB Charger for iPhone 6 5S/5, iPad, Samsung Galaxy, HTC M8, Cell Phones (Silver) Power Bank, Powerful 12000mAh external battery charger keeps your digital devices always powered. Built-in 4 LED indicators to show the charging status and battery level, safe to use. Quickly and effectively solves the low power problem for your devices while on-the-go. Made of solid aluminum alloy with anodized processing, comfortable to the touch. 5V 2.1A output USB port, fits for iPhone, iPod, Samsung Galaxy, Smart Phones, Tablet PC, etc.