VonHaus Pest Repeller Ultrasonic Motion Activated Outdoor/Indoor Animal Repellent with LED Lights & AC Adaptor Keep unwanted pests away - the safe and humane way. Repellent is effective on cats, dogs, birds, deer, rabbits, squirrels, skunks, bats, mice, rats, foxes, raccoons and more. With 5 working electronic modes - ideal for protecting yards, gardens, porches, patios, basements, garages, attics, boats, ponds and farms. Ultrasonic sound, audible sound and flashing LED lights  activated by Passive Infrared (PIR) motion sensor. 4000 sq. ft. coverage area with a motion sensor protected area of up to 600 sq. ft. Weatherproof and water-resistant. Install using the aluminum ground stake or hang. Mains adaptor or 9V battery operated (battery not included.)