See www.gundogsupply.com/garmin-alpha-10-handheld.html
Compact design with at-a-glance, multi-GNSS tracking and configurable training
Add Garmin TT15 or TT15 MINI collars (available separately) and track and train up to 20 dogs
Store custom training settings for each dog with 18 levels of continuous or momentary STIM plus tone and vibration
Up to 9 mile "line of sight" range
Up to a 2.5-second update rate
Connect to your Garmin DriveTrack 71 to view your dog’s location on a map
Sync with the Garmin Explore smart device app to view dog tracking data, hunt replay, and more
Compatible with Garmin Fenix and Instinct GPS watches for quick tracking updates on your wrist
Up to a full week's battery life...