Anonymous 5 out of 5 03.29.2017 at 6:11 pm Have used Sportdog training collars for about 10 years. Decided to replace the Sport Dog 3-dog system. Did a lot of research and found numerous people suggesting the Garmin Pro 70. I can’t say enough good things about the Pro 70. Easy to use and very dependable. I definitely made the right decision going with the Pro 70 from Outdoor Dog Supply.