1. 20 Channels High Sensitive GPS Receiver
2. Fourl-Band GSM 850/900/1800/190 Mhz
3. GPRS/CDMA dual communication channels
4. Automatic vehicle position report back to the Call Center
5. 2-Way Voice Communication, the Call Center and Driver can communicate by voice.(Relized by LCD Screen)
6. SOS button transmission of data based on priority
7. Automaticlly store & re-send data when GPRS disconnected |
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