The Xiaomi Mi Power Bank 30000mAh is a high-capacity portable charger designed for long-term use and multiple device charging. It boasts a 30000mAh battery, enabling multiple full charges for smartphones and tablets. The power bank features three output ports, including two USB-A and one USB-C, supporting fast charging and simultaneous charging of up to three devices. It also offers pass-through charging, allowing you to charge your devices while the power bank itself is recharging