Garmin Alpha TT 25 GPS Dog Tracking Collar

TRACKING: The 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). TRAINING: Train your dog with 18 levels of continuous or momentary stimulation plus audible tone and vibration (when used with a compatible handheld; sold separately). UNIVERSAL SIZING: Rugged yet slim design is universally sized to fit large and small breeds DYNAMIC TRACKING: Get extended battery life with dynamic tracking based on your dog’s movement LED BEACON LIGHTS: Identify your dog, even in the dark, with a large, easy-to-see multicolor LED; colors include yellow, magenta, cyan, white, green, red or blue REPLACEABLE BATTERY PACKS: Batteries are user-replaceable and easy to change; when using dynamic tracking, a standard pack lasts up to 68 hours, and an upgraded expanded battery pack lasts up to 136 hours