Vinsic 20000mAh Ultra Slim Power Bank, 10 Times for iPhone 5/5S, Dual USB Portable External Battery Charger for iPhone, iPad, Samsung, Cell Phones. Power Bank, 10 times for iPhone, with high capacity 20000mAh, provides powerful and stable power supply for each port. Equipped with dual USB ports to fast charge two digital devices simultaneously. 5v 3.1A, Dual-port usb charger, it is universal fits for iPhone 6 5S/5/4S/4, iPad, iPod, Samsung devices, HTC phones, tablet PCs, digital cameras, game consoles and MP3/MP4 players, etc. Safe to use. Supports over-charged, over-discharged, over-voltage, over-current and short circuit protection, perfectly protects your digital devices from charging accident. Slim Power Bank, ultra-slim design with a hard plastic & aluminum alloy construction, solid and portable. Convenient to carry at anytime and anywhere. Built-in figure LED indicator, easy to know the remaining capacity.