Prepaid Unlocked Universal GPS SIM Card for OBD GPS Trackers + Mobile App Affordable prepaid unlocked universal GPS SIM card for OBD GPS trackers with mobile app compatibility for over 1500 GPS tracker models. This SIM card supports 4G 3G and 2G devices ensuring wide compatibility with various trackers. The package includes a TurnKey mobile app that simplifies the setup process for GPS tracking making it hassle-free for users. Compatible with over 1500 GPS tracker models Supports 4G 3G and 2G devices Includes TurnKey mobile app for easy setup