Product Description1. [Infrared principle]: The insect repellent adopts the principle of infrared detection, and at the same time emits an ultrasonic probe to drive away small animals. Solar-powered bug repellents can help protect your property and garden from pesky stray dogs, cats, and other critters. Woodpecker Deterrent2. Portable Design: Since the animal repeller is a portable design, it can be installed in the home, garden, courtyard or anywhere, this product is a low voltage power supply with battery, this product can drive animals without any warranty of chemicals, it is only Sending out an ultrasonic frequency of 25kHz drove them away. Will not cause any harm to the human body. 3. [Motion Activation]: The sensor sensitively detects moving objects, and simultaneously triggers 120 decibel sirens, ultrasonic waves and flashes to prevent the intrusion of bad guys and dangerous animals, and protect your personal and property safety. 4. Motion Detector: This is an uninterrupted transmission of the infrared sensor output signal. When the sensor detects that the animal has entered the detection range, it will automatically emit an audio frequency to drive the animal, and the LED will light up accordingly. 5. [Portable and easy to use]: Just push the repeller into the ground. Perfect for yards, patios, driveways, garages, attics, porches, boats, gardens, farms, ponds, and more. Even though it's portable, it can be brought into camping away from stray dogs, cats and pests.