Vinsic 20000mAh Power Bank, Portable Charger Battery Pack for iPhone, Samsung Galaxy, and Other USB Devices (Gray) Power Bank, it is universal fits for iPhone, iPad, iPod, Samsung devices, HTC phones, tablet PCs, digital cameras, game consoles and MP3/MP4 players, etc. 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 Safe to use; Supports over-charged, over-discharged, over-voltage, over-current and short circuit protection, perfectly protects your digital devices from charging accident 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