The wireless fence works great. We live in an area where there are lots of walkers, dogs and bikers. Our 7 month old puppy thought she was a greeting committee and was constantly running into the street. We could not take our eyes off her for a minute. The wireless fence system was easy to set up and our pup caught on very quickly. She knows the second she hears the beeping sound, she turns around. I would highly recommend this system, it is very effective.