Buyinhere Solar Powered Ultrasonic Mice Gopher Rodent Mole Mouse Pest Repeller Chaser Eliminate underground rodents from your lawn and garden using the power of the sun! Prevnt moles and gophers with this solar-powered pest repeller. This safe, humane, environmentally-friendly device produces a sonic pulse that you and your pets can barely hear, but it makes burrowing rodents run to safer ground away from your lawn and garden. During the day, it runs on the sun. At night, it's powered by an internal rechargeable solar battery for the around-the-clock protection. Power supply: solar panel, and long lasting rechargeable battery by solar energy Ultrasonic frequency: transmitting a combination of vibration and ultrasound waves every 30 seconds in the frequency between 400 HZ~1000HZ; Effective coverage: 6000 square feet or 650 square meters Function 24 hours a day, no operating cost; No Poison, no chemical, environmentally friendly; safe even with pets and children around Package Included: 1 x Solar Rodent Repeller