Keep your dog out of the living room or raccoons away from your a garbage. Other devices emit a constant sound, but Animal Away saves batteries by utilizing an infrared motion detector that activates the 23,000 Hz signal only when the unit detects motion within a 45-foot range. Use it indoor or outdoors. Wireless operation, powered by one 9-volt battery, allows the Animal Away to be optimally positioned to limit animal access. Easily mounts on walls, fences, or even wooden stakes and its green housing blends in with most lawns. Now you decide what areas are off limits.