Seicosy Repellents (Green) MOST EFFECTIVE YARD SENTINEL: Inaudible Ultrasonic and audible Sonic Alarm combined use are more perfectly to repel animals. Ultrasonic frequency and Sonic Volume are adjustable. Drive away all types of animal invaders in your garden. Very effective repel cats, dogs, deer, birds, skunks, mice, foxes, raccoon and more. WIDE APPLICATION & WIDE EFFECTIVE AREA: Ideal animal repellent for protecting your garden, lawn, cabin, shed, attic, farm, barn, warehouse, patio or wherever safe and effective pest control is needed on day, night or 24 hours according to your set. The ultrasonic sound emits in a forward direction from the device with a range of about 170 degrees horizontal and 60 degrees vertical. SMART ANIMAL REPELLER: Our animal repeller adopts the advanced PIR infrared motion sensor technology. When warm body enter the range of the animal repellent within 45 feet (14 meters), ultrasonic and sonic will be activated. Animals, birds and pests will be driven away. WATERPROOF, ECO-FRIENDLY & SAFE: Unique seal and design lets you install this outdoor pest repellent anywhere. Ultrasonic cannot be hear by human. This pest repeller is eco-friendly, safe for human and pets and wont even harm the pests you are trying to repel. INTELLIGENT POWER SOURCE & LIFETIME WARRANTY: Powered by AC Adapter or 4 C batteries (NOT INCLUDED). In the case of power failure, device will switch to battery backup when batteries are installed. We provide lifetime warranty and 24 hours customer service for this pest repellent.