About this item Advanced PIR Motion Sensor: Ultrasonic repellent features a high-tech PIR motion sensor that detects movement within a 110-degree arc and up to 26 feet, releasing ultrasonic waves between 13.5-45kHz to keep various animals at bay Solar and USB Charging: Deer repellent equipped with a solar panel for energy-efficient operation, this device also supports USB charging for enhanced convenience. It’s built to endure any weather with its robust IP44 waterproof rating Effective Ultrasonic Deterrent: Activated by motion, the device emits a sound that naturally drives away animals like squirrels, deer, and raccoons from your garden, ensuring your area remains undisturbed Adjustable Sensitivity Modes: Comes with five selectable sensitivity levels to match your specific needs, ensuring broad-spectrum animal deterrence. Installation is straightforward, either by staking into the ground or mounting on elevated structures Optimization Tips for Use: Animal responses can vary; if effectiveness is limited, switch between modes to test and find the most successful setting over a period of 2-4 weeks for enduring tranquility in your outdoor spaces