Product 1. [Infrared principle]: Animal repeller uses infrared detection principle, to send out ultrasonic probe at the same time to drive away small animals. Solar animal repeller can help you stay away from pesky stray dogs, cats and small animals harassment to protect your property and your garden.woodpecker deterrent 2. [Portable design]: the animal repeller is a portable design, can be installed in your home, garden, courtyard or anywhere, this product is low voltage power supply with , this product can drive animals without warranty of any chemicals, it is only issued to 25kHz ultrasonic frequency drove them away. there will not be any harm to the human body. 3.[ Motion Activated]: Sensor sensitively detects moving objects while ing 120 dB alarm sounds, ultrasound and flash to prevent intrusion of bad guys and dangerous animals, protecting your personal and property safety. 4. [Movement detector]: a non-stop transmission infrared sensor output signal when the sensor detect animals get into the detection range, it will automatically send out acoustic frequency to drive animals and the LED lights up followed. 5.[Portable amp; Easy use]: simply push the animal repeller into the ground . for yard, patio, driveways, garage, attics, porches, boats, gardens, f , ponds, etc. Even it is portable to take into your camping to be away from stray dogs, stray cats and pests harassment. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.