Adjustable sensitivity: The cat repellent has two buttons to control mode and sensitivity for effective animal deterrence. The left control adjusts sensitivity and the effective distance, while the right control selects from different operating modes. Solar powered and USB powered: The ultrasonic cat repellent is powered by a solar panel and also supports charging via USB cable. The red indicator light is on while charging and turns green when fully charged. Place the repellent where the solar panel will receive maximum sun exposure. Harmless and humane: This ultrasonic solar animal repellent deters small animals in a chemical and humane way, avoiding injury or killing. The effective working distance is 812 meters and the coverage is 120 degrees. Motion detection and activation: When the PIR infrared motion sensor detects an animal passing by, the repellent emits a shortduration strong ultrasonic wave accompanied by a strong flashing LED light to drive away animals and pets such as cats, dogs, squirrels, mice, skunks, raccoons, and deer from your yard, garden, patio, farm, and orchard, helping protect your home. Use scenarios: In the yard, garden, or patio to deter visiting cats, dogs, and other small animals. Around fruit trees, crops, or barns in a farm or orchard to protect crops. Near garbage areas or entry points to prevent pests from approaching.