[EFFECTIVE ULTRASOUNDREPELLENT]Once animals enter the protection range, the PIR sensor starts to work, then it will emit ultrasonic waves and the red light will be turned on so that it repels the animal.Powerful ultrasound drives away unwelcome wild animals, protecting your garden from being disturbed [SOLAR POWERED & WATERPROOF DESIGN]This Ultrasonic Cat Repellentcan be powered by the solar energy under the sun, which is economical and environmental. Its waterproof design allows it to work in all weather conditions such as rain, snow, ice and wind. can be effectively working all year-round under almost all weather conditions [LARGER DETECTION AREA]The infrared PIR motion sensor has an angle of up to 50 degrees and a detection range of up to 8 meters. Large detection area range can reach 230 square meters. Get rid of animal droppings, food destruction, noise and footprints in just 1-2 weeks [EASY TO INSTALL AND USE]You can simply push the animal repeller into the ground,or hang on wall through the back slot (With direct sunshine recommended) [WARM TIP]If you turn on thecat sensor repellent when you receive it, it has no response. Please charge it in the sun about 2 hours and it will work. If there is any problem about the product, please feel free to contact us, our customer service team will reply you within 24 hours