【How does the ultrasonic mole repellent work】 Stimulate the central nervous system of mice by vibrating and emitting sound waves of 400 to 1000 Hz, so drive them away. It makes animals feel uncomfortable and can be rejected without harming them. Can keep away moles, snakes, cockroach rodents, rats, mice and other destructive rodents. 【Waterproof and IP65 waterproof】 Solar mole repellent with excellent water resistance and can work continuously even on rainy days. Made of made of sturdy ABS plastic and corrosion-resistant aluminum, no radiation, chemicals or odors, safe for humans and our pets. 【Solar Panel Technology】 This mole trap is powered by a solar panel on the top. The size of the solar panel is large enough to collect sunlight to keep the mole repellent working for 3-5 days without using additional batteries. 【Easy to Install】 The installation is completed simply by inserting it into the ground. Because it is compact and convenient to carry. You can easily install repellents