I did not do something right my posting did not go so I will try agin. I know that they have items that emit a sound that repels rodents and bugs I am looking for one to keep animals away from the spring area that my domestic water is gathered from. Deer Elk Bear Turkeys Grouse. I am trying to keep it clean without fencing the area in. It is about 1/2 a. I figure that I will use a battery with a small solar panel for power. If it works I will use one on my garden.