Best Seller | Roofei 6Pcs Ultrasonic Pest Repeller Electronic Plug in Repellent Indoor for Flea Insects Mosquitoes Mice Spiders Ants Rats Roaches Bugs-White How it works: Ultrasonic pest repeller emits high frequency ultrasound causing pests lose direction and consciousness and drive them away. works on following pest: mice rat cockroach spiders millipedes mosquito ant termite bedbug ladybugs silverfish... more | | $33.99 $30.59 FREE shipping go to store |