★ Why Choose Us?- The product uses a safe and reliable high-density lithium polymer battery, which is smaller in size and has a larger battery capacity. The built-in security chip stabilizes the voltage and current and controls the temperature, provide safe protection for the power bank.- The compass is precisely calibrated before it leaves the factory. It is built into the solar power bank without additional carrying. Point out the direction for you outdoors, so that you no longer get lost.- The LED indicator can accurately display the battery power, which is convenient for controlling the battery power during use.- The product is waterproof and use high-strength ABS material without fear of falling from high altitude. It can still work normally in extreme environments.★ Specification:- Material: ABS+PC- Dimension: 16.6 x 8.4 x 3.2cm/6.5 x 3.3 x 1.2inch- Battery Capacity: 30000mAh- Output: DC 5V/2.1A- Input: DC 5V/2A- Package Include: 1 x solar charger power bank★ Warm Tips:- The Solar charger function is an additional feature, the actual result may not be as positive as you expect for the small panel size and uncontrollable sunlight intensity.- Please make sure the power bank is fully charged by USB cable before your trips as the solar charging is for emergency use only.