[Wind Power Source]This wind power fan is powered by wind energy and can absorb wind power into electrical energy. [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. [Suitable Size] and easy to transport power to where you need it. [Wide Application]Widely used in automobiles, electric vehicles, bicycles, ambient lights, etc. Due to different batches, there may be differences in product appearance and printed text, which not affect use Colour:Black Material:ABS Package Contents: 1 x Wind Turbine Generator kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.