Description Solar Powered Mole Killer The ultrasonic mole removal unit vibrates and emits low frequency sound pulses of 400 to 1000 hertz every 30 seconds to repel burrowing rodents. The ultrasonic gopher repeller irritating moles, gophers, chipmunks. Solar and waterproof Our product is waterproof so that you can use it on rainy days. Powered by solar cell, no extra batteries needed. The device will automatically store and use energy from the sun during the day to keep working at night. Extended Coverage Works in a circular pattern, approximately 15 feet in radius and covers up to 700 square feet. For the best possible result, we recommend installing 2 devices every 100 feet for floor surfaces frequented by stains of birth. Non-toxic and safe for children and pets The mole repellent works only on the base of low-frequency sound vibrations to scare away burrowing rodents without using harmful chemicals and poisons that can harm your soil, pets and family. Suitable for multiple placesUse in your garden, farm or rice field to repel moles, gophers, voles, scales and other destructive rodents. It can effectively repel mice, moles , ground squirrels and voles.