... by demand, by time/distance interval12. 24/7 Client Software Access13. Saving GPRS Flow, 34-54byte of each position ... , MicrophoneCircuit Diagram:GPS Tracking System(Software)1, We provide you web based & desktop software for tracking2, GPS tracking system lanuages ... quality control management & competitive price, we gain orders from Government Purchasing in both domestic market and overseas market.4 ...