1. Ultrasonic protection: animal repellent is only used to guide animals without chemicals and to deter accidental intruders caused by ultrasonic waves. Works with ultrasonic and LED flashlights for dogs, cats, martens, raccoons, mice, birds, foxes, rodents, martens, deer. The product uses the principle of infrared detection, no harm to small animals and the human body. 2. Ultrasonic loud flashing LED acoustic alarm: there are 14 strong LED lights in the eyes of the owl. In terms of its mouth, it is an ultrasonic transmitter. When the external repellent detects motion and body heat, there is a mixture of ultrasound of different waves, strong flashing lights and acoustic alarm to scare animals. There is no danger to humans or animals. 3. Infrared sensor: the nose of the owl repellent is an infrared sensor (PIR) that can detect animals of all sizes. The actual area covers an arc of 120 degrees and a distance of up to 30 feet (10 m). As soon as the animals reach the radius of 30 feet, the motion sensor emits ultrasonic waves and the LED lighting makes the animal unpleasant and escape. 4. USB charging and solar energy: there is a solar panel on the head of the owl. Let the owl absorb energy when the sun shines. In addition, it is equipped with a rechargeable 2000 mAh lithium battery! You can also charge the ultrasonic repellent via USB. 5 Adjustable Modes The irregular and variable frequency makes it more effective to drive away more aggressive animals that can adapt and become immune to a certain frequency band.