Garmin DriveTrack 72Garmin DriveTrack 72 at Okie Dog Supply! For hunters who want to track and monitor their dogs in the field, this rugged dog tracking GPS navigator can handle off road terrain while following up to 20 dogs1 on its big, easy to read display. Features: Crisp Hgh Resolution 7 Inch touchscreen Pairs directly to your compatible Garmin Handheld: Alpha 200 200i 200 Plus 300 300i PRO 550 Plus Track up to 20 dogs: seeing distance, direction and status for each