... EGSM900 / GSM1800 wireless networks2,Compliant to GSM phase 2/2+3,GPRS multi-slot class 104,GPRS Class B5, accord with ... head antenna interface, the characteristic impedance 50..SIM card interface: 3 V / 1.8 V standard push-rod type YongHuKa interface ... ..Power source: standard 3 core engine power socket.1. The power supply:External power ...
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