Efficient power supply by solar energyThe solar mole defense is equipped with high-tech solar cells. By installing in a sunny place, you can always charge the built-in battery and do not have to worry about the battery being empty.since the precision performance of the solar panel has been improved.a full charge can continue to work for 5-7 days to ensure normal work on rainy or cloudy days. Safe for children, petsNo chemicals or poison are used in this process. Mole Repellent Stakes emits 3-4 seconds of low frequency pulses in every 30-second that penetrate through the ground and prevent them from entering the protected area. Durable,Waterproof DesignUltrasonic defense with solar operation is made of high quality ABS and PVC, With waterproof and corrosion resistant and flame retardant material design. It has a hard plastic structure that can withstand rain, snow, ice and wind and still can work 100% normally in any weather.24-hour protection.The economical and environmentally friendly snake repellent can be used for a long time without stressing the ground. Wide application Mouse sunscreen is powerful and effective, the device works in circular mode, the coverage length is up to 10 meters, and the effective coverage area is about 650 square meters. We recommend installing 2 or 4 units every 100 meters in your garden or terrace for best results.