The best wireless dog fences help keep your pups safe outdoors. We tapped a professional trainer to choose our top 4 picks.

Your pet wears an electronic collar that gives them a gentle ... Also, an invisible fence won't keep other animals from entering your yard. Shop on Amazon A wooden privacy fence can do double ...

The phrase "virtual fence" might evoke images of those invisible dog fences in backyards ... an electrical stimulus similar to one from an electric fence. Previous work on virtual cattle fences ...