Improved Modern Technology: This three speaker mice repellent is integrated with high intensity ultrasonic and pressure waves technology which effectively stimulate the nerve auditory system of pests and keep your house clean Wide Range Coverage: A simple plug-in electronic rat repellent system gives you coverage effectively in an indoor area against all kinds of pests such as bed bug, mice, moths, ants, mosquitoes, spiders, cockroaches, squirrels, fly, rodents etc Humans and Pets Safe: Pest repeller protect in 360 degree direction simultaneously by using specially designed dedicated sounds above the human and pet hearings with no need of rat poisoning , mouse traps or rat traps which are unsafe and can hurt pets or kids Four Function Switch: This indoor have two function switch that can be manually operated to cover different utility which includes test, ultra, trans and duo switch makes it an ideal choice for home, caf, warehouse, supermarkets, restaurants, office, garage and granary