The Transonic Pro Ultrasonic Pest repeller repels unwanted insects and rodents from attics, garages, basements, kitchens, crawl spaces or anywhere there are pests. Effective on ants, spiders, cockroaches, fleas, ticks, bats, rats, mice, and other crawling or flying insects. AC adapter included, use only 1-Watt. Nine adjustable settings utilize different sound patterns to target virtually any pest. Drives pests away with sounds they can’t stand – in an area up to 3500 square feet! Repel pest animals with psychoacoustic jamming, intense, variable pitch ultrasonic and sonic sound waves that create a noisy, hostile dynamic sound environment. The noise is intolerable to pests yet friendly to pets and humans. Weather resistant metal housing. Dimensions L x W x H (in.): 3 x 6 x 3.