Eallc Solar Animal and Birds Repeller, Electronic Pest Control Waterproof Repellent with Flashing LED Lights(Batteries Included) This repeller runs on 3AA batteries (included). The device has a solar panel which recharges the batteries every day.and this animal repeller has 5 different settings with frequencies ranging from 13.5KH-45.5KH to repel all kinds of animals. A strong flashing LED to scare animals.the strong flashing LED will be activated when an animal enters the area,then the animal will be scared and flee away. A strong ultrasonic wave to frighten animals.The wave is activated when an animal enters the PIR Sesor range and then the animals feel uncomfortable and will run away from the area. The passive infrared sensor(PIR) detects motion and triggers the ultrasonic speaker emiting a tone that animals can feel and chase away these animals. Repeller is for Mice, Rats, Dogs, Foxes, Martens, Cats, Racoons, Badgers, Skunks, Bats, Birds and Rodents.