vehicle security tracker tkstar tk905 gps tracker 2g/4g gsm gprs locator voice monitor 5000mah with powerful magnet web app

this gps tracker tk905 is working based on existing gsm/gprs network and gps satellites, it can locate and monitor any remote targets by sms, app and internet. it adopts the most advanced technology of gps and agps dual positioning. besides, with built-in powerful magnets, it can be installed frequency(850/900/1800/1900mhz), can work perfectly around the worldwide gps+lbs dual positioning ways: if the gps signal is good, the device will locate via gps satellite, if not, the device will locate via lbs under gps locating mode, the accuracy is 5-10 meters, under lbs locating mode, the accuracy is 100-1000 meters.syi