http://topreviewhq.com/pets/PetSafe-PIF-300-Wireless-Pet-Containment-System.html
Dogs love to roam about, there is no denying that. That is both good and bad for their health. They stay healthy and fit until a car runs over them. It might sound cruel but that is what regularly happens in urban areas. And so the chain appeared, and then wireless solutions like the PetSafe Wireless Pet Containment System, the PIF-300. Using radio waves fight against straying was a novel and somewhat controversial idea a while back, but now it is here to stay.
