Eco-friendly and Safe - The sonic mole repeller emits sonic pulses and ultrasonic waves without any use of harmful or toxic chemicals. This ultrasonic animal repellent works solely on the basis of low-frequency sound vibrations, pets and people. Waterproof Design - Made of durable ABS and aluminum materials, corrosion-resistant, safe and chemical-free, IP66 waterproof, not afraid of rain. No radiation, chemicals or odors. Solar Powered - In order to keep our environment clean, we lead to the use of eco-friendly solar energy and rechargeable battery for the outdoor vole repellent. It can absorb sunshine for daily function. In addition, it needs to be used continuously for 7-14 days before ground rodents start to move away from the area. Wide Coverage - This solar mole repellent is powerful and effective, it works in a circular pattern, with a radius of about 15 meters, suitable for open lawns, courtyards, gardens, farms and other open spaces. Easy to Install - We need to install the