Wide Range: Infrared PIR motion sensor angle up to 110 degrees and detection range up to 10m away triggers the cat repellent to emit a high-frequency sound, irritating to animals. Easy Installation: Simply point the cat repellent towards the area you want to protect and place it in a place with plenty of sun. It can be installed anywhere in the house, garden, patio or for outdoor camping. Solar and Waterproof Design: The outdoor ultrasonic cat repeller is equipped with a solar panel, which can be charged with solar energy or with a USB power source. The waterproof design ensures that it will keep working on rainy days. Safety and Environmental Protection: The solar powered cat repeller features a dual speaker design, which uses ultrasonic and LED lights to repel to animals: environmental protection, no chemicals, safe for humans and animals.