Science proves that only the female mosquito which is in its propagating period bite human and animals, to feed its spawn. But in this period, the female mosquito hates to meet male ones. The product was designed according to the principle. It can drive the female mosquito by imitating the sound of the male ones. Dragonfly is the natural enemy of mosquito. That is why we called it mosquito hawk. The product can imitate the sound of dragonfly wing`s vibration to drive all kinds of mosquitoes.