With the Mi powerbank 2, it is possible to transfer energy via two ways. The Mi Power Bank 2 equipped with a Micro USB and USB port. The Mi Power Bank 2 is an intelligent power bank for your smartphone, tablet or smart watch. The Mi Power Bank 2 supports a Fast Charging technology and different voltages, making the Power Bank is suitable for many pinion with a high or low input. The Mi Power Bank 2 protects your phone from excessive load, overheating and automatically adjusts the appropriate voltage to. So you are provided with a fast and secure way to charge your phone. And do not forget the Mi Power Bank 2 is a powerful power bank with a capacity of 10,000mAh