... , SOS alarm 4.Playback history HOT Sale GPS MINI Personal TrackerMT90GPS tracker is a device based on ... network to track where the target is by GPS on google map, and where it has been ... or need help by press the button.General Function:GPS Chipset: SiRF Star IIIGSM Chipset: SIM 900 (Quad ... Logger using Micro SD cardHow it works:Application:1. protect child, the old, the disabled, pet etc2. Provide peace ...