Invisible Dog Fences, sometimes called underground fences or hidden fences, are very popular with dog owners who wish to give their dog the freedom to run and play in a safe and confined area. An invisible dog fence consists of an electric wire which is buried underground along the perimeter of the area desired. The wire provides a weak radio signal that sends messages to a special collar which the dog will wear. As the dog approaches the boundary, the collar will beep, followed by a slight electric shock. Choosing the right invisible dog fence can be confusing because of the wide variety of options available. Good quality fences are sold by PetSafe, Innotek, and Perimeter, among others. There are a few important things to consider when buying, including an adequate…

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