RibRave Ultrasonic Animal Repeller Solar Powered Racoon Skunk Bird Cat Deer Pest Repellent Animal Deterrent with Motion Activated Yard Keep Animals Out of GardenBrand: RibRave Color: Green Features: [Multi Frequency Mode] When the Ultrasonic Deterrent Device detects a slow moving object, it activates and emits ultrasonic flashes. It returns to sleep mode once the object leaves. The frequency knob can be adjusted according to the type of animal, with different frequencies effectively repelling different animals. It is recommended to increase the frequency to a higher setting. [Solar Powered and Waterproof for