Gomeir 20000mAh Power Bank Portable External Battery Pack 2 USB Port for iPhone, Samsung and Smartphones Tablets(Blue) Ultra reliable A+ Lithium-Ion battery with security protection design. This portable battery pack will automatic shutdown if a short circuit or overload output occurred while unit is charging Dual USB ports- can charge two smartphones simultaneously or an iPad and iPhone. 5V/2A safe and fast, we strongly suggest you to use a 2amp adapter to charge the charger which saves much time. Huge capacity- with 20000mAh capacity it can charge iPhone 5/5S 8 times, Samsung Galaxy S5 4 times, Galaxy Note III nearly 3 times, iPad more than one time Strong Compatibility - Gomeir Smart Battery Charger is compatible with most of the smart phones MP3,MP4, etc and 5V tablets in the market What you get: 1x power bank, 1x user manual, 1x lightning cord, 1xmicro usb cord, 12 months limited warranty.