Good Riddance Eco-Friendly Ultrasonic Pest & Animal Repeller with Motion Detector, Strobe Light & Solar Panel WIDE COVERAGE - covers a 30 foot, 2,425 square foot range at 110 degrees ECO-FRIENDLY - powered by a solar charging panel and rechargeable batteries and eliminates the need to use harmful chemicals 24-HOUR PROTECTION - ward off deer, raccoons, mice, foxes, skunks, stray dogs, cats, birds, geese, etc. ADJUSTABLE - emits an adjustable ultrasonic frequency to scare off a wide range of animals EASY TO USE - place near the area you want to protect and check back periodically to ensure device is receiving enough sun and is protecting the area appropriately