The 20000mAh Mi Power Bank is a portable external battery charger that provides a high capacity of power to charge your devices on the go. With its large capacity, it can fully charge an iPhone up to seven times or an iPad up to three times. The power bank is equipped with dual USB ports, allowing you to charge two devices simultaneously. It also features fast charging technology, ensuring a quick and efficient charging experience. The power bank itself can be charged using either a micro USB cable or a USB-C cable. It is compact and lightweight, making it convenient to carry in your bag or pocket. The LED indicators display the remaining battery life, so you know when it's time to recharge the power bank. With the 20000mAh Mi Power Bank, you'll never have to worry about running out of battery again.