The Bird-X Pest-X Electronic Ultrasonic Pest Repeller for Rodents, Mice and Insects is an easy-to-use, easy-to-forget plug-in pest control device. Just plug in the repeller and chase away rodent pests like mice, and also insects like spiders, ants and cockroaches. It's an inexpensive, effective solution that's safe around humans and pets. Repellent effectively chases away pests in home or office Effective on rodent pests like mice and also insects like spiders, ants and cockroaches Safe for use around children and pets No poisons, chemicals or traps Use anywhere pests are seen Ideal for basements, garages, attics, crawl spaces, barns, sheds Covers average size rooms; use more units for large spaces or in rooms with a lot of furniture Uses ultrasonic, silent technology #1 bestseller Commercial technology, superior to every other brand Inexpensive, effective solution, safe around humans and pets 500 sq. ft. coverage per unit