The Garmin Alpha TT 25 Dog Collar with Beeper Battery Pack is a slim, rugged, and universally sized GPS tracking and training collar built for serious hunters and dog handlers. Designed to work seamlessly with compatible Garmin handhelds (sold separately), the TT 25 allows you to track your dog up to 9 miles away with highly accurate GPS and Galileo positioning and update rates as fast as every 2.5 seconds. Dynamic tracking technology adjusts updates based on your dog’s movement to help extend battery life, keeping you focused on the hunt instead of the charge level. Built for demanding outdoor conditions, the Alpha TT 25 features a top-mounted high-sensitivity receiver, bright multi-color LED beacon lights for low-light visibility, and an integrated location beeper with multiple sound options. Training capabilities include stimulation, tone, and vibration when paired with a compatible handheld, giving you precise control in the field. With a water-resistant IPX7 rating, replaceable battery packs, and automatic Wi-Fi software updates, the TT 25 is a dependable, long-lasting solution for tracking and training dogs of all sizes. Tracks dogs up to 9 miles with compatible Garmin handhelds (sold separately) High-sensitivity GPS and Galileo receiver for accurate location tracking Dynamic tracking optimizes battery life based on dog movement Integrated location beeper with 5 sound options and adjustable volume Training features include stimulation, tone, and vibration (with compatible handheld) Bright multi-color LED beacon lights for enhanced visibility in low-light conditions Universally sized collar suitable for large and small breeds User-replaceable rechargeable lithium-ion battery pack Up to 78 hours of battery life using dynamic update rate (extended battery pack included) Rugged, slim design with IPX7 water resistance Automatic software updates via Wi-Fi when charging USB-C charging interface Garmin Alpha TT 25 Dog Collar with Beeper Battery Pack 010-03383-20 in Black/orange