[Wind Power Source]This wind power fan is powered by wind energy and can absorb wind power into electrical energy. [Suitable Size] and easy to transport power to where you need it. [Effective]Wind power can greatly transfer USB power to charge mobile phone power bank. [Easy to install]Paste it on a car, bicycle, or electric vehicle, and then connect it to a USB wind power generator to charge your mobile phone to work normally. [Wide Application]Widely used in automobiles, electric vehicles, bicycles, ambient lights, etc.