Two Methods of Repelling - Ultrasonic and LED Light - Depending on the selected frequency, the Cat Repeller can release animal-hated ultrasonic or LED flash to repel animals, such as cats, dogs, squirrels, deer, bears, birds and other animals. It is an important partner to protect your garden. Adjustable Sensitivity and Frequency - You can adjust the sensitivity and frequency according to your needs, etc. Please read the user manual for more information. Note: In most cases, the recommended frequency is the most effective repelling frequency. Infrared Sensor The nose of the owl repeller is an infrared sensor (PIR), capable of detecting animals of all The sizes. The effective area covers an arc of 120 degrees and a distance of up to 30 feet (10 m). Once the pets enter the 30ft radius, the motion sensor will emit ultra-fine waves and the LED light will make the pet feel uneasy and run away. USB Charging and Solar Power: There is a solar panel on the owl's head Let the owl absorb energy when there is sunshine. Besides, it has a 1500mAh rechargeable lithium battery It is also possible to charge the ultrasonic repeller via USB power supply. 5 adjustable modes Irregular and variable frequency makes it more effective to hunt the most aggressive animals which can adapt and become immune by a particular frequency band. Environmental protection - cat repellent uses waves ultrasonic and flashing LEDs to repel animals without harming animals or causing environmental damage. You can place it anywhere you like, for example: garden, orchard, farm, etc. If you have any questions, please contact us and we will resolve your issue as soon as possible.