4G GPS Tracker for Vehicles, Toptellite Car GPS Tracking Device Support WiFi Hotspot/Remote Oil & Power Cut-Off Precise Locator Positioning&Monitoring for Fleet Management/Spouses/Assets + SOS Alarm[ADVANCED 4G LTE TECHNOLOGY] With the 5G lte comming, 2G and 3G will gradually be outdated, it will become difficult to find the 2G 3G SIM card, 4G LTE will be the major, and be most economic network in the market(5G is new technology, it will be most expensive); Toptellite Car GPS Tracker not only support 2G 3G SIM card, but also works with most kinds of 4G SIM Card like AT&T T Mobile, BE MORE COMPATILITY! You smart diving manager! [WIFI HOTSPOT]