solar power: equipped with solar panels and rechargeable batteries that can absorb sunlight and last longer. The battery does not need to be replaced. Efficient and healthy : Without chemicals, vibrates and generates sound waves of 400-1001 Hertz by the buzzer which stimulates the mouse central nervous system.It can effectively repel mouse, mole, gophers and voles without using harmful chemicals and poisons which can harm your soil, pets and family. Excellent waterproof characteristics: The product is rainproof and waterproof, and can work continuously even on rainy days. But it can’t be soaked in water for a long time. Extended Coverage: Operates in a circular pattern, approximately 15m in radius and covering up to 700 square feet. For the best possible result, we recommend installing 2 devices every 100 feet for floor areas frequented by birthmarks. SUITABLE FOR MULTIPLE LOCATIONS: Use it in your garden, farm or paddy field to repel moles, ground squirrels, voles, scales and other