The Kerbl 299870 Vole Repellent is an effective, solar-powered device designed to protect gardens and lawns from voles and moles. It operates by emitting vibrations and sounds at irregular intervals (every 30 seconds), which are perceived as a threat by rodents, encouraging them to leave the protected area. The device is maintenance-free, weather-resistant, and covers an area of approximately 700 square meters. It features a built-in rechargeable battery that is charged by the solar panel, ensuring continuous operation even during cloudy days or at night. Ideal for use in gardens, fields, and other outdoor spaces.