We went through several tracking devices on our company vehicles. We always had trouble with connection issues with them, or just way too expensive to use. We came across your devices on Amazon and have been completely satisfied with them since. They do exactly what we need. They track in real-time and also keep past data for us to be able to track our vehicles efficiently. We plan on getting more trackers soon for all of our equipment and trailers. Thank you, LandAirSea!