SOLAR ENERGY: Equipped with solar panels and rechargeable batteries, able to absorb sunshine and enjoy longer working time, no need to replace battery. BUZZER VIBRATION TO WARD OFF: The mole repeller vibrates and emits 400-1000 hertz sound waves through the buzzer, it can repel moles, snakes, voles, dandruff and other destructive rodents. EXCELLENT WATERPROOF PROPERTY TO THE WATER : The product has the characteristics of waterproof and rainproof, and can work continuously even in rainy days. But it can’t be soaked in water for a long time. Suitable for multiple places: Apply to your garden, farm, rice field, it can keep away moles, gophers, voles, dandruff and other rodents destroyers.