GreatHouse Garden Infrared Sensor Ultrasonic Solar Power Cat Dog Repeller Solar powered animal repeller is effective and easy to use. Simply drive the stake into the ground in a location of your choice, and leave it to charge in the sun. The passive Infrared sensor (PIR) detects motion and triggers the ultrasonic speaker emitting a tone that people cannot hear but chases away common outdoor pests like dogs, cats, foxes, deer, raccoons, mice, skunks, squirrels and more. This solar animal repeller is a safe and humane way to keep unwanted animals away. Specification: Brand: GreatHouse China Size: approx. 366x144x95mm Power supply: 4 x "AA" Nicd rechargeable batteries Power consumption: standby=0.8mAh, working=15mAh Ultrasonic frequency: 18-40KHz Coverage area: 30 feet, 110= 2425 square feet Feature: - Powered by an amorphous solar panel, conomical and environmentally friendly - PIR can detect motion within a 30ft (9.14m) radius - Without cords or cables, simply put in place, and wait for it to charge - Effective in repelling various pests, such as cats, dogs, foxes, and rodents - Ultrasonic speakers, covers 110 degree arc and 30ft ground area - Not harm people, animals and pets Package Contents: 1 x Solar Animal Repeller Package Contents: 1 x Solar Animal Repeller Warm Note: For best results, keep the repeller head roughly 9-10 inches above ground. Allow the Animal Repeller to operate continuously for best results. Do not immerse repeller in water. Do not cover-up the PIR sensor To clean the repeller, use a damp-soft cloth and mild soap with water. Do not use harsh chemicals or abrasive cleaning agents that may damage the repeller. When the PIR sensor detects motion, the LED light will flash for 3 seconds and the ultrasonic signal will run for 15 seconds. Following this, the repeller will return to stand-by mode.