For sale is a Dog training set.  Comes as pictured with what is pictured.  I coudln't get it to work but may have been doing something wrong.  Digital field trainer, CS-4500 is the model marked on the case.  Includes the remote and two shock units.  Remote is gundog model GS4500.  The one shock collar piece is not marked, other is marked sportdog.  I don't have a charger for the Sportdog unit.  Charger seems to work for the other one, red light comes on when plugged in.  I couldn't get the remote to work with either unit.