The Battery Power Supply Fly Repellent Fan is compact and portable, making it perfect for use at home, in the office, or even while camping or picnicking. The powerful fan blades ensure that you stay cool and comfortable, while the ultrasonic frequency effectively keeps flies and other pests away.
No more nasty, disgusting bugs crawling all over your sweet treats.
The dots refract/bend light which scares the insects. In their little fly minds, the bending colored lights are not normal in nature and it appears dangerous to them. They will choose to go somewhere else.
Blades come to a stop if something touches them, then resume as soon as the obstacle is removed.