• Efficient solar charging: High-tech solar panels, no need for recharging or additional batteries. Fully charged in just 4 hours in the sun, works for 5-7 days without interruption. • Wide working range: Based on vibrational and ultrasonic waves, with strong underground penetration of about 15 meters radius, effective in approximately 650 square meters. It is recommended to install 2-4 devices every 100 feet in areas with high rodent frequency. • Efficient and safe: Contains no harmful substances, emits sound pulses and ultrasonic waves every 20 seconds to repel animals without harming them. Safe for the environment, humans, and animals. • Waterproof and durable: Made of high-quality ABS and PC, with waterproof, anti-corrosion, and fireproof design. Water-resistant, can be used even in bad weather like rain. • Easy to use: Install in a sunny place, turn on the switch, and plug the device into the ground to protect gardens, lawns, yards, and farms.