16800mah External Power Bank With Led Indicater,Double Usb Power Bank Mini Portable/Emergency Charger Backup/Travel Battery 2.1A for iPhone,6,5, 5S, 5C, 4S, 4, iPad Air, 4, 3, 2, Mini 2,Nokia, Motorola, HTC, Samsung Galaxy,MP3\4, iPaid, iPod, Camera,etc With high compatibility, USES the international standard USB 5 V output design, be compatible with all USB charging? equipment, no matter what brands your mobile phones are: iPhone, samsung P1000, PSP, NDSI, NDSL game devices, MP3 / MP4, GPS, bluetooth, iPad tablet computer,? digital camera devices. They also can be charged when you plug with their own data line,it's? very convenient and practica LED indicator light: input charging,fully charged instruction, battery indicator. Considering your safety fully, the product use? polymer lithium-ion batteries with? high safety, and high-accuracy intelligent? protection circuit (over current protection, overcharge protection, overheating protection, short circuit protection, reverse connect protection), protecting the safety of the use effectively and comprehensively, no accident- hidden danger. After 24 hours aging test, more safety and reliable. High capacity 16800mAh mobile power,Beautiful shape.Super bright LED flashlight function.