Ultrasonic Solar Powered Pest Repeller Get Rid Of Mice Mole Mouse Snake for Outdoor Lawn Garden Yards Pack of 2 by CHOOO 1.FUNCTION - Keep moles, gophers, voles, badgers, mice and snakes away from your lawn, gardens and yards forever. 2.MATERIAL TYPE - Made of durable ABS plastic and corrosion-proof aluminum, Solar powered , Ultrasonic Solar speakers, NI-MH battery. 3.APPLY TO THE ENVIROMENT Suitable for surface and underground pest repeller wherever outdoor gardens, nurseries, lawn etc. Waterproof, no worry for extreme weather.But Choose the best sun location, so the solar panel to can receive the light as directly as possible. 4.EFFECTIVE RANGE - Rechargeable via solar energy to charge the battery, generating ultrasound stimulated rat central nervous system, to achieve the purpose of driving the mouse, the effective range is 650 square meters. 5.EASY TO USE - Easy to Install & Operate.Energy-saving & Eco-friendly. Safe and Chemical free. No harm to your pet. Not have a negative impact on human.