The Home Sentinel 5-in-1 Indoor Ultrasonic and Electromagnetic Pest Repellent by Aspectek helps control indoor pests. Its superior unit combines ultrasonic, electro-magnetic and ionic functions. The device will turn the wiring in your walls into a pest-repelling system by using electro-magnetic waves to repel animals from the wall and then repel them from the house with the powerful ultrasonic sound signals. The Home Sentinel unit includes air cleaner, effectively removing bacteria that attract unwanted pests. The unit also comes with a comforting night light with a power-saving light sensor function. Ideal for rodents, roaches, spiders, crickets, fleas, bed bugs, ants, flies, bees, silverfish, ticks and other indoor pests. The Home Sentinel unit eliminates the ongoing costs of spraying your home for pests and puts an end to those messy mouse trap clean-ups. It is safe for humans and pets.