Keep the hounds at bay with P3 International Hi-Frequency Animal Away Repeller. Keep the dog out of the living room or raccoons away from your garbage, as Animal Away utilizes powerful high-pitched frequencies to deter animals from invading your space. Inaudible to humans, the high-pitched frequency is uncomfortable to animals, causing them to move to a more peaceful area. It saves batteries by using an infrared motion detector that activates the 23,000-Hz signal only when the unit detects motion. Dimensions: 4W x 2D x 18H inches.