3G version works in US. NZ. AU, JP and SG due to these countries has been cut off the 2G network.
2G version works in most area just these place still has the 2G network.
Car GPS Tracker, Personal GPS Tracker, Health Care manufacturer / supplier in China, offering Mini Sized Personal GPS Tracker with Waterproof IP67 and Docking Station, GPS Tracker with Keychain Design Mini Size and Long Battery Lifespan GPS Tracker, Micro Personal GPS Tracker with Free GPS Tracking System in Google Maps and so on.