About this item Ultrasonic Pest Repeller: Ultrasonic Pest Repeller can be used to repel unwanted wild animals. Contains no chemicals harmful to the animals themselves. Protect your garden Instructions: The infrared sensor is integrated in the ultrasonic terminal, which is located in the middle of the electrical installation in the shape of an owl. The infrared sensor (PIR) covers an arc of 110 degrees and a distance of up to 8 meters. It uses infrared thermal sensors. The sensor is sensitive to the direction of movement of the animal, insensitive to radial movement and sensitive to lateral movement Ultrasonic + powerful flashing LED: when they detect body movement or heat, the transmitter at the bottom of the product emits ultrasonic waves and powerful flashes to scare animals. Humans and animals are not dangerous in themselves USB charging and solar energy: There is a solar panel on the product. The insect repellent absorbs energy when exposed to sunlight. On rainy days, you can charge the ultrasonic insect repellent via USB power source. Once fully charged, about ten days of autonomy.