With a massive 50000mAh capacity, this power bank offers days of power for your smartphones, tablets, drones, and other USB devices. Its lithium polymer cells ensure safer charging. You can charge up to 4 devices simultaneously with its 4 USB output ports, making it perfect for sharing power with your companions. It features both TYPE-C and Micro dual input ports for recharging, supporting 2.1A fast charging. The power bank includes a power display with 4 LED capacity indicator lights, showing the remaining power: 4 LED lights indicate 75-100%, 3 LEDs indicate 50-75%, 2 LEDs indicate 25-50%, and 1 LED indicates 0-25%.