Garmin Alpha TT25 GPS Dog Tracking and Training Collar with 18 Levels of StimulationTrack and train your pack with the Alpha TT 25 dog collar. The rugged yet slim housing is designed to fit a range of breeds and features a user replaceable flex band. When used with a compatible handheld (sold separately), you can track and send training commands up to 9 miles. A built in multicolor LED makes identifying your dog easy, even in darkness. It also can be used to train your dog. The collar features 18 levels of momentary and continuous