If you're tired of all kinds of insects and critters, we present this app with different adjustable Ultrasonic sounds in order to try to scare off and drive away annoying mosquitoes, insects, and critters in general. Features: - Different insects and critters: Use it against mosquitoes, flies, cockroaches, or rats. - Select the frequencies: You'll have the option to select different types of frequencies for each type of insect or critter. How to use it? At the beginning of the app, we will show you a brief summary of how this tool works. Just select the insect you want to fight off and then select the ultrasound frequency you would like to use. What are ultrasonic sounds? Ultrasounds are a series of mechanical waves, generally longitudinal, whose frequency is above the hearing capacity of the human ear. Informational note: It has not been 100% scientifically proven that these low-frequency sounds can scare off insects or other critters, but there have been cases in which they have been helpful for scaring them away.