Ultrasonic Pest Repeller is a natural pest repeller using new electronics technology resulting from research into the life cycle of household pests to drive rodents and insects away electronically and intensively! Scientific research has found ultrasonic sound waves attack the auditory and nervous systems of most common pests causing them pain and discomfort. The high sound pressure will chase mice, cockroaches, fleas, ants and other common household pests away from their shelter.