LuMen Stone Line 10400mAh Power Bank Dual USB 3.1A Output Portable Charger High Capacity External Battery Pack with Flashlight for iPhone 4S 5S 5C, iPad, Nexus 7 10, Galaxy S4 S3 Tab 3 2, Andorid Smartphone, 8V Tablets, Bluetooth Speakers headset, Google Glass, Gopro etc. Output: 1A ~ 2.1A Black 2 x USB Output: 5V 1A ~ 2.1A, Charging Two Devices simultaneously, design for charging Phones and Tablets, Can charge 1 Tablets or 1 Smart Phones simultaneously at most High Capacity:10400mAh , Supply about 600%~700% of iPhone 4 battery life, or 200%~250% of Google Nexus 7 battery life, 7 Integrated LED indicator show Power status Battery Type: Samsung A-Class battery, use the safer Li-polymer battery. 503+ recharge cycles over the life of the battery Security protection design: short-circuit and over current protection; The device will automatic shutdown when short circuit or overload output happened to avoid destroy the device and accident Size: 10.8 x 8 x 2.8cm, Stylish & Special Design, you can handle the device by one hand conveniently or carry in your pocket or purse. PERFECT for long plane flights, road trips; Carry the mobile power wherever you go; charge your devices any time any whe0