Wireless/invisible dog fences interact with a special dog collar. The collar vibrates as your dog approaches the boundary and some may give an electrical correction when the dog has gone too far. You get to choose which settings you use. It’s good to remember that you can’t reap the benefits of these fences without training your dog. You’ll need to teach your dog where the boundaries are for at least two weeks before letting them roam free in the space. Read the full article for more details abo