1.Dog cat and wildlife deterrent: this ultrasonic cat deterrent has the latest ultrasonic technology that produces a 20 kHz 45.5 kHz ultrasonic wave, which is accompanied by an alarm sound at the same time. The builtin PIR sensor is highly sensitive and triggers at an angle of 110° and a range of 09 m to ensure maximum performance. 2.Environmentally friendly charging: solar cat deterrent is equipped with a solar panel on the top that effectively captures solar energy. which effectively charges the product and keeps it in standby mode all day long. This is environmentally friendly and comfortable. Outdoors, you don't have to worry about the product need a socket, suitable for harsh weather conditions. 3.: the ultrasonic animal repellent with its waterproof IP44 design allows operation in the rain. It can be used outdoors all year round, you can leave it standing in any weather and don't have to worry about it not working in the rain. (Note: do not immerse in water) 4.Human design: Ultrasound is and harmless to the human body. At the same time, it is from chemicals and dangerous substances. It will only drive the animals away instead of harming them. Humanised design does not harm your cat, dog or other pets.