BAKTH 15600mAh Power Bank - High Capacity Portable Premium Shake-Starting Fast Charging USB Ultra-Compact Backup Phone Charger External Battery for Smartphones,Tablets and Other Devices (Black) Direction for Use: You can just shake the power bank off then it starts to work: LED indicates the battery charging status. Double USB 3.5A output: (USB Output 1: 5V 1A; USB Output 2: 5V 2.4A Max), charging two devices at the same time. Caution: The two orange parts of the product has the protective film, if you want the product more shining, you should tear off the protective film. Super protection: overshoot, over-discharge, short circuit, over voltage, leakage, and many other protective functions. Stable performance: BAKTH designed specifically for you. CE and ROHS certified. Unique function and beautiful outline: hake-starting unique function design makes can give you amazing using experience, the sparkling outline attractive and beautiful fits all the office and homing scene. Fast charging feature: BAKTH 15600mAh external battery pack with Fast Charging Technology, protect your product and deliver its fastest possible current. Package contents: 1 x BAKTH 15600mAh External Battery1 x BAKTH Micro USB cable, 1 x BAKTH User Manual. BAKTH is OEM authorized and high quality18-month warranty and friendly customer service.