KEH-003 solar energy multi-function movable power supply is a product with high capacity lithium ion battery/cell inside. Use intellective MCU control to adjust different output voltage and current, Charge the lithium ion cell through charger or sunlight irradiation, output power supply through USB interface, charge mobile phone or other most numeral products by adjustment of different output voltage. Specially applied to use as spare power supply on business trip, travel and field work. With its function with radio, you will not feel lonely on your trip. Besides, our product has many advantages as good safety, good protection, big capacity, long life and multi-function.