Bell + Howell® UltraSonic Pest Repeller

So Effective and So EASY! Just plug it in! That's it!
A silent ultrasonic signal creates and irritating environment for all disease-causing pests, chasing them away from your home while preventing future pests from entering. Completely safe for adults, children & pets with no harmful chemicals or sprays. You'll receive FOUR for Under $20 — Get one for every room!