This is a demonstration of the effectiveness of an e collar if used properly with the right training. See the out of control dog change in minutes AND HAPPY!! If you want to Unleash Your Dogs Potential……. and be sure to sign up for My FREE FREE mini dog training video series not found on YouTube and to get more information on how to purchase Duke’s Dog Training Genesis training programs For Professional Dog Trainers needing coaching, mentoring or info on how to attend Duke Ferguson’s Unleashed Potential K9 Academy “school for professional trainers” Comment and let us know what you want to see!!