Learn the 3 Ds of dog training – distance, distraction and duration – in part 2 of successful electronic collar, or e-collar, training. James Hamm, Lone Star dog trainer and president of the International Association of Canine Professionals, shows how tone of voice and body language can help you succeed in training your pet with a Garmin dog device. He also discusses duration and frequency of training as well as the types of commands that can be trained.