Unifun 20000mAh Power Bank Backup External Battery Dual USB 2A Fast Charging Portable Charger for iPhone 6S 6 Plus, iPad and Samsung Galaxy S6 Edge Constructed with A+ lithium-ion battery cells and build-in intelligent charging microchips to ensure safety use and long lifespan Super-fast charge dual USB output (5V / 2A,5V / 1A ) allow simultaneous charging of your iPad, iPhone, Android, and more at high speed. 5V 2A (max) input, needs only 10 hours(Save your 50% time on recharging) to full charge the huge capacity 20000mAh external battery with a power adapter of 5V 2.1A or higher output (not included). 4 blue LED indicators to display the remaining power;Intelligent circuit design protects against short circuiting, over-heating, over-currents, and over-charging. Package content: Unifun 2Amp input 20000mAh power bank, premium charging cable and user manual.