Insect bugs - flies, mosquitoes, pests You can combat mosquitoes, flies, pests, worms, and ants by frequency. It is an app that can eliminate bugs by frequency. The frequency of 15kHz ~ 21kHz can be used after selecting. Please catch all the mosquitoes, flies, daylies, insects and pests of the world. - mosquito repelling - Fighting Paris - Fighting of daylily - Anti-ants - Fighting worms caution: A loud sound can cause equipment / hearing damage with only one short exposure. Always lower the audio system level to an appropriate level before playing the sound file.