General description The 4pcs Ultrasonic Animal Repeller is a solar-powered device designed to effectively deter rodents and other pests such as cockroaches, rats, and snakes. By emitting sound waves in the range of 400-1000Hz every 30 seconds, it stimulates the central nervous system of these animals, making it an efficient solution for gardens, farms, and greenhouses without harming humans, pets, or poultry. Technical specifications Frequency: 400-1000Hz Effective range: 15 meters radius Coverage area: 650 square meters Material: Durable ABS plastic and corrosion-resistant aluminum Waterproof rating: IP65 Installation Wireless and hassle-free installation Recommended to install 2 units every 100 feet in high-traffic areas Usage This ultrasonic animal repeller operates continuously 24/7, making it ideal for outdoor areas such as gardens, patios, backyards, garages, driveways, decks, farms, ponds, and attics. Other information Safe for humans, pets, and poultry Energy-saving