The Riddex Plus Electromagnetic Pest Repeller helps create a cleaner indoor environment by using patented electromagnetic pulse technology that works through your home's electrical wiring. Simply plug the device into a standard outlet to provide continuous, silent, and odor-free operation without sprays, traps, or chemical pesticides. Designed for indoor use, one unit helps cover up to 2,000 square feet or one level of an average-sized home. The built-in nightlight provides convenient illumination while the unit operates continuously. This maintenance-free pest repeller is suitable for helping deter common household pests such as rodents, bugs, and other unwanted vermin while remaining chemical-free for everyday home use. | Msa Ear | | Riddex Plus Electromagnetic Plug-In Pest Repeller with Nightlight for Bugs & Rodents | White | Best Buy