EasyAcc&reg; 12000mAh Power Bank 4 USB 3.5A Output Portable Charger High Capacity External Battery Pack for iPhone 4S 5S 5C, iPad, Nexus 7 10, Galaxy S4 S3 Tab 3 2,Andorid Smartphone, 5V Tablets, Bluetooth Speakers headset, Google Glass, Gopro etc.[Output: 0.5A ~ 2.1A; Black+Yellow]