Advanced Protection: Create the safe, fun and warm home you and your family deserve No more pest nightmares: Repel rodents like rats and mice, insects, cockroaches, bugs and spiders. Just plug it in and you’ll see results within 3 weeks 1500 sq. ft. work area: Please avoid using the device in the same room as rodent pets (hamsters, guinea pigs), birds, etc. How it works: The 25-65 kHz ultrasonic waves emitted disturb pests, unlike traps and toxic sprays that kill organisms Satisfaction Guarantee: If you are not satisfied with the quality of the result, we let you keep the product. Yes, this is our attitude towards products