Pest-Stop (Pelsis Group) PRCPSORUA Ultrasonic All Pest Repeller The Pest-Stop Ultrasonic All Pest Repeller emits three frequencies undetectable to humans. Repels rodents, dogs, cats, rabbits, squirrels, badgers and foxes. Works on a looped cycle or infrared motion sensor. Can be wall mounted, comes with a ground spike for flexible positioning. Range: 15 meters (117m2) with 60 degree; of rotation Requires: 2 x 9V (not included)