Get freedom from your wall for over a day, It has 10000mAh huge capacity could charge smartphone about 3 times. It will be very helpful when you are in travel or other outdoor activities. Advantages: The power banks has dual outputs (all is 5V, 2.1A), you can charge two devices at the same time. And the power banks has dual inputs (micro USB & type C) Smart System: The portable Power bank built-in smart chip, Glorious power pack could identify the voltage compatible with your device automatically and start the safety protection to prevent overcharge, overheating and short-circuit. Intelligent LED Digital Display Easy to know the remaining power and the charging mode. Universal Compatibility Not only supports high range or expensive smartphone but also supports android, microsoft phone, tablet, smart watch, Bluetooth speaker, dongle, products. Camera gaming console, PSP etc. How To Use Click the switch to turn on the power banks or it auto detect technology and if it is not connected to any device, the power bank will be closed after 15 seconds. In order to fully activate the battery, please charge it 10 hours at least at the first 2-3 uses.