Working PrincipleThis outdoor cat repeller uses ultrasonic sound with flashing intensity to repel birds, mice, cats, wild boars and other animals, as strong ultrasonic signals can make an animal uncomfortable, but this kind of ultrasound is almost inaudible to humans, so you can achieve the goal of chasing animals and letting them leave your mansion and garden. Suppress Alarm FunctionThis TLICLXY cat repellent suppresses alarm function, reducing the impact of noise on humans and not disturbing neighbors, no messy chemicals or pesticides, no traps, no animals dead. In addition, because the frequency range of the emitted ultrasonic waves is different, the emitted ultrasonic waves have no effect on pregnant women, children, friendly to humans and the environment. Solar Charging + USB ChargingOur garden cat repellent has a solar panel, which can be easily charged, can be continuously charged by sunlight enough to meet daily consumption. If it's raining outside, you can use USB charging. indoor cat repellent is especially suitable for use in places where it is not practical to supply power, such as farms, gardens, lawns, kindergartens. 5-speed adjustable frequency There are 5 different frequency choices. You can choose it according to your needs Level 1: Mouse, dog, rabbit, fox, mink, etc. Level 2: cats, raccoons, badgers, skunks, etc. Level 3: bats, birds, mice, etc. Level 4: Loud flashing LED, sound and light alarm: snake, raccoon, boar, mink, etc. Flashing LED. WaterproofThe ultrasonic cat repellent with waterproof design that can work in rainy days. Note: Do not submerge in water. You can simply push the ultrasonic animal cat repellent into the ground. Ideal companion for the yard, patio, driveways, garages, attics, porches, boats, gardens, farms, ponds, etc.