Garmin Alpha 100 with TT15 MINI COMBO (1-dog GPS System)
Here is my Garmin Alpha 100 with 4 tt15 mini collars, use to use them with my beagles for hunting. Had an accident which left me on a wheelchair, everything works perfect.
Garmin Alpha 100 Handheld GPS Dog Tracker - Walmart.com
Alpha 100 with TT™ 15 Dog Device | Garmin Customer Support
Garmin Alpha 100: The GPS Training Collar That Turned My Pup Into a Hunting Dog