About this item [Easy to Use] Insert into soil or hang on objects such as trees, fences and walls for best results (direct sunlight is recommended). Easy to install, just assemble the accessories before use. Effective 5 different sensitivity modes, which can be set according to needs, different sensitivities can effectively act on different animals, the level can be set to suit the range area, scare dogs, cats, wild boars, mice, birds, etc. Keep many other animals away from your area, house, garden or yard. [Solar & USB Charging] There are two charging modes to choose from. It has solar panels and a charging indicator light. Please charge the device before use. [IP-4 Weatherproof (Normal Rain)] Perfect for gardens, patios, farms and more. With an IP-4 waterproof rating and sturdy hard plastic construction that resists rain, snow, ice, and wind, you can use them in any weather and still be 100% functional. (Reminder: Do not touch the charging port while working). [SAFE & HUMANIZED DESIGN] The solar dog deterrent can drive animals out of the garden without any chemicals. No chemical hazard to human health, passive infrared sensor (PIR) detects motion and triggers, then ultrasonic speaker emits noise to scare away common outdoor animals.