Home Ultrasonic Animal Repeller can effectively scare and drive away birds, wild boars, bats, mice, squirrels, raccoon and other animals away from your house, garden, farm, orchard, etc. The ultrasonic waves under mode 3 cannot be heard by human whichis normal. Drive Animal Away Humanly: Home Animal Repeller will send out infrasonic and ultrasonic waves with alarm sounds and strobe light flashes to scare animals away when the detects their motion and triggers. This repeller can effectively drive the animalsaway but will not hurt them, which is humane and harmless. Weatherproof & Durable: Outdoor Ultrasonic animal Repeller is designed to work under any weather condition for it is rainproof, windproof and sun proof. It can hold up well for long time under normal use. Please note: Due to the different sensitivityof different animals to ultrasound and light, it is not guaranteed to work on all animals. Powered By Solar Energy: Home outdoor Animal Repeller is equipped with solar panel as the power supply so that it costs low and produces no pollution. It is especially ideal for the areas of poor or no power condition. In addition, it can also be chargedwith 5~12V adapter. Easy To Use: Need not install; place ultrasonic dog repeller directly into the proper position where the light touches. And when the PIR detects animals motion and triggers, the repeller begins to work. Home Ultrasonic Animal Repeller has 5 modes tochoose, so just set the most effective one to meet your specific need.