Dogtra PATHFINDER (4 Options) Additional Collar
. Get this extra PATHFINDER dog collar(s) instead of buying another system.So now you can get another dog or two later. The Dogtra PATHFINDER-RX is an expandable collar Dogtra created! This system offers low to high power, a 9-mile range, and equipped with high intensity LED locating light built-in You can select Black, Orange, Green or Blue colored collar to identify each dog.