Rat Repellent: The solar vibration ultrasonic rat repellent emits 400-1000Hz sound waves through vibration to stimulate the central nervous system of rats and drive them away. This can cause discomfort to the animal and can be removed without harming it. Solar Powered: The upgraded solar mouse repellent is powered by high-efficiency solar modules. The built-in battery can be recharged at any time by placing it in a sunny place. Note: Please place the solar mouse repellent in the sun for at least 1 day to charge it before installation. Waterproof: The solar mouse repellent is waterproof and can withstand rainwater, so the mouse repellent can continue to work even on rainy days, protecting your lawn or garden effectively and reliably. Long Range: The effective range of the solar rodent zapper is up to 400 square feet. Press each mole repellent into the lawn once every 45 feet. Keep your yard pest-free and enjoy a beautiful, healthy lawn. ECO-FRIENDLY: The solar powered ultrasonic pest