It will take too much time and space to build a physical fence. therefore, I have chosen this wireless one. We have used 4 different systems over the years and I feel this product is by far the most convenience dog system we've owned. We used the collar and the transmitter to form the fence. It was super simple to install and setup and has worked perfectly so far. The transmitter is also very simple and easy to use. It seems to have a long-range and I love that it provides the collar with warming sound without hurting my dog with each shock.