DT’s long range Super Pro  Trainer - SPT2400 Series system with built in (backlit) LCD screen gets the call from professional trainers when only the best will do. The SPT2422 is a 2-Dog System (one dog unit is the SPT2420) & features a 3.2 mile, 50 level remote trainer with Nick, Continuous, Jump stimulations, Vibration Assist, and Vibration Stimulation (V S).  When long range dog training is a must, the Super Pro Trainer is the tool for the job.