Fluctuating ultrasonic waves cause auditory stress to mice, rats and most crawling insects, which disrupts their normal behaviour patterns and makes it uncomfortable for them to stay in the same room as Pest-StopRepeller
Simply Plug in and use right away. Ideal for any room up to 500 square feet in size. Requires unobstructed view to the problem area ( ultrasound does not penetrate solid objects ). The fluctuating ultrasound waves make habitation unbearable. Safer than other methods - like traps and chemicals. Will not affect humans, cats, dogs, fish or birds.