One of the easiest methods to set up an adequate zone for a dog without having to build a traditional fence is to use a GPS Dog Fence. Unlike a traditional fence, it uses GPS to set the limits of a dog’s free-range. Halo program makes it easy to control this function. The Halo Collar and the app work together to build a virtual fence around your property or yard. The technique allows to define and set a boundary depending on the form of the property. Once the barrier is set,