David and Alex, I'm writing to tell you how happy we are with the DogFence you installed two years ago at our home in Cropseyville, New York. We have two Siberian Huskies who are very active and love to run. Everyone told us that the DogFence would not work with huskies. We'll I've got news for them! I don't know what we would do without it. They would have to be fenced in a pen and cooped up all the time if it were not for the DogFence. It works so well that we also installed one at our place in the Adirondacks. It gives us a very secure feeling to know that they respect the boundaries and won't go running off wild and potentially get lost, stolen, or hit by a car. Thanks again, we love our DogFence! Bill and Nancy Flynn