Introducing the Dogtra Pathfinder SE Kit, an all in one system which includes a special edition pathfinder collar, GPS Connector, and a CAT S48c smart phone. No longer will you have to use your personal cell phone to use the Dogtra Pathfinder system. Paired with the tough and rugged CAT S48c smart phone the Pathfinder SE can go anywhere, in any elements without the worry of damaging your expensive iPhone or Samsung.