RIDDEX Plus Pest Repeller - Non Toxic Pest Repellant EASY WAY TO KEEP PESTS OUT - Forget the poisonous chemicals or messy traps! Drive unwanted pests out of your home with the Riddex(r) Plus mice, rat and cockroach-repelling unit. SIMPLE SET-UP - Just plug Riddex(r) Plus into any wall outlet, and the wiring in your home creates pulses that pests don't like, which keeps them out of your hair (and kitchen counters, and bathrooms, and basements!). SAFE TECHNOLOGY - Humans, cats, dogs and other house pets aren't at risk for irritation because they can't hear the pulses. BONUS NIGHT LIGHT - The box features an indicator light that let's you know when it's working, and includes a handy nite lite on the front so that it pulls double-duty in the dark. EFFECTIVE COVERAGE - The Riddex Plus Plug-In Pest Repeller covers up to 2000 sq. ft. of interior space (on one level).