Product Features:This Ultrasonic Pest Repeller Control Electronic Repellent Mice Rat Reject applies a powerful ultrasonic wave to repel away bugs, mice, cockroaches, rodents, spiders, ants and rats, while remaining fully safe for humans and pets.Works by continuously transmitting a powerful range of ultrasonic sound waves that drives away pests, while remaining completely inaudible to humans and pets.Non-toxic and harmless to humans and pets, an alternative to toxic chemicals and dangerous traps.Protects an area up to 80-120 square meters per unit.Low power consumption, suitable for long time operation.Does not interfere with the operation of radio, television or other electronic equipment.Ultrasonic Pest Killer Repeller Blue lampUltrasonic can act upon the hearing and the nervous system of them to make them unpleasant and uncomfortable, which drives them away from your home.Product differentiation: Our product 360 degrees ultrasonic transmission, more effective anthelmintic. The back has a heat dissipation function to prevent excessive work. It only costs around 5W of power each devices BUT ensure you 7*24h free from pests and mice.