Design Concept: the ultrasonic animal repellers are mainly designed to repel a variety of animals away from your garden, such as cats and dogs, in this way, you can better protect your lawn and flower beds, keep them in good condition Feature Solar Powered: the ultrasonic cat repeller adopt solar powered design, you just need to insert it outdoor in your garden, it will absorb sunlight automatically and play its role for your purpose without charging, can serve you for a longer time How to Work: the solar animal repeller is an infrared sensor that continuously outputs signals, which will emit ultrasonic waves and turn on led lights to repel animals if these animals enter the protection area, during this operation process, it will not make loud noise and affect your normal life Effective without Harming: the solar ultrasonic animal repellers are made with a reasonable method, you can achieve your repelling purposes while not do harm to those animals, which will be more ideal animal cat repelling device choices Apply Anywhere You Need: simply insert the solar ultrasonic cat repeller into the soil and turn on for functioning, the compact size allows you to install in your home, garden, yard or any other place you have a need, it can work in various weather conditions with the waterproof feature