No matter what kind of dogs you run or how you hunt, Garmin Alpha TT 25 Electronic Dog Training Collar is slim, rugged and universally sized collar designed to help you build a better dog - no matter the breed.FeaturesThe top-mounted, high-sensitivity GPS and Galileo receiver keeps track of your dog's location, and the Alpha TT 25 collar transmits that location via VHF up to 9 miles away with updates as frequent as every 2.5 seconds when used with a compatible handheld (sold separately)Train your dog with 18 levels of continuous or momentary stimulation plus audible tone and vibration (when used with a compatible handheld; sold separately)This collar features bright, multicolor LED beacon lights to help you identify and track your dog in low-light conditions. They can be remotely activated and changed from a compatible handheld (sold separately).Receive automatic software updates when Alpha TT 25 is charging and connected to your network with Wi-Fi technology.The Alpha T...