Solar sonic mole repeller: round with a radius of approx. 15 m and an effective range of 700 square meters can pass through 700 square meters of vole mice and snakes. We recommend 2 devices per 100 feet on the floor where pests are found frequently. Efficient and practical: it can use mice, moles, waffles and voles without the use of chemicals and harmful toxins that harm your floor, pets and family. Protect your garden, garden, lawn, seed bed and rodent plants Waterproof devices: made of high-quality ABS material for long-term use. The waterproof design is designed to meet the demands of rainy days. It is waterproof and can be charged under sunlight so that it can be used at night Safety and environmental protection: Polycrystalline silicon solar panels are characterised by high power conversion rate, environmental protection, energy saving and plug and play properties. By absorbing the light, the solar cells can supply sufficient energy to use the pest controller. Energy-saving and waterproof: Built-in high-tech solar panels, the pest repeller can be automatically charged by solar cells. Made of high quality and environmentally friendly materials, it offers good water resistance and protects against rain.