& nbsp; Solar energy: equipped with solar panels and rechargeable batteries capable of absorbing sunlight and having a longer working time. No need to replace the battery. Efficient and healthy: without chemicals, the repellent & nbsp; vibrates and produces sound waves of 400 to 1000 hertz by the buzzer, which stimulates the central nervous system of the mouse. It can effectively repel mice, moles, gophers and voles without using harmful chemicals and poison for your soil, your pets, your family. may be damaged. & nbsp; Excellent waterproof properties: The product is rainproof and waterproof, and can work continuously even on rainy days. But it cannot be soaked in water for a long time. & nbsp; Extended Coverage: Works in a circular pattern, around 15m radius and covers up to 700 square meters. For the best possible result, we recommend that you install 2 devices every 100 feet for surfaces of soil frequented by maternal grains. & nbsp; Suitable for many places: in your garden, on