1.Science prove that only the female mosquito which is in its propagation 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.
2.Dragonfly is the natural enemy of mosquito, that's why we called it mosquito hawk, the product can imitate the sould of dragonfly wing's vibration to drive all kinds of mosquitoes.
FEATURES:
1.The sound emited by the product can only be heard by mosquito,it's hurtless to home electrical appliances,human and pets.
2.The product is steady and effective.You will get evident effect once use it. And you will drive all the disgusting mosquito out after 5-7 days' continuous use.
3.This product can be used in used in: Homes and Apartments.Food Service Outlets;Businesses Farm Buildings;Kennels and Stables.It's efficient for unattached space of 30 stere.
4. 3 frequency:15KHZ 17KHZ 22KHZ.