Charging method: solar charging Occasion: garden, ranch, farm, airport, hotel, park. Suitable for type of pest: Ground Squirrel, Mole, Mouse, Rat, Vole Make a pilot hole in the ground with a wooden or steel rod. And gently insert the device and fill it with soil after the device has been installed. Solar Ultrasonic Mole Repeller,Uses only ultrasonic sounds to repel and deter intruders. A multi-pulse repeater constantly changes the ultrasonic pulse it emits to prevent snakes from getting used to your garden. Outdoor mole repellent ideal for outdoors like garden, yard, lawn.etc. Frozen soil, irrigation or stagnant water lead to insufficient operation of this device. Please do not press the solar panel. Please select the solar panel on the top to get the most sunshine. This product is rain resistant, but should not be immersed in rain. In the event of rain or flooding, remove the repellent until the rain subsides. Waterproof design allows operation in all weather conditions. When the