safety: The Ultrasonic Pest Repeller Does Not Use Any Chemicals Or Poisons But Just High-frequency Sound Waves Which Do Not Harm People Or Pets Like Cats And Dogs As It Does Not Involve The Use Of Chemicals.easy Operation: All You Need Is To Plug This Device And It Will Start Doing Its Work.versatility: Although These Devices Were Made To Ward Off Bugs And Pests, It Can Also Work On Rodents Like Mice, Squirrel And Rats And Small Animals, That Are Sensitive To High-frequency Sound.litter-free: Since Pests Like Insects, Rodents, And Bugs Are Warded Off The Premises, You Dont Have To Worry About Cleaning Up Unlike When You Use Spray Pests And They Need To Be Swept-off The Place Which Is Unlike The Use Of Chemical Repellents.suitable For Using In Home, Apartment, Restaurant, School, Office, Basement Or Any Indoor Areas.Products from Chunchuan's store