Another issue with the GPS Dog Collar is if the dog would understand what the device is doing. During the tests, a very significant development in respect to the Halo Collar sprang up when Luna heard the warning cue, halted and just stood there. She required no callback, no physical repositioning at all. That’s pretty positive since it shows the training is beginning to pay off. It is even more promising that Luna pauses when she hears the warning cue during the testing with