The biggest brands particularly Garmin and SportDog, today propose specialized systems to be able to follow and train your Dog at several kilometers of distance. Their long-range location systems consisting of a base and a collar (with or without dressage) will allow you to track your companions either through a compass or with the help of a detailed map depending on the model used. Using a tracking collar will allow you, thanks to the technologies used, to return serenely with all your Dogs after the Hunting game. No more question then of walking for hours in search of your companions during the long nights of Winter...