Protect Your Garden and Yard Do you often worry about the pests around you? Do you want to keep your patio or garden clean? Our state-of-the-art solar-powered ultrasonic wave repellent system effectively prevents pests from damaging your land and entering your lawn. Specifications: Material: Aluminum and ABS plastic Acoustic frequency: 400~1000Hz Effective coverage: 650 m² Rated power: 0.06 (W) Built-in battery: 1.2V 1PC 80 MA NI-MH *Be careful not to immerse it in water or rain. Reasons to choose us: 1. Can be charged directly by solar energy, no additional battery is required. 2. The solar ultrasonic repeller can drive away moles, snakes, rodents and other destructive rodents. 3. Solar ultrasonic repellent No radiation, chemicals or odors, safe for humans, our pets and the environment. 4 x Solar Ultrasonic Mole Repeller 1 x User Manual Wide effective working area Each mole repellent can provide up to 7,000 square feet of protection for your yard or garden. The number of stakes