GT-04 Handheld Tracker is a personal remote positioning device with Built-in GPS and GSM/GPRS modules with compact size. It can transmit the Longitude and latitude coordinate to your cell phone by the short message service, then you can find its location on the free Google maps© or any other map software. You can use these features for protecting and searching of Children and elderly Person. Further, you can use it for other security purposes such as asset protection and animal tra..