... acceleration<4gAntennaGSM quad-band antenna, GPS high gain antennaLED indicator Three LED indicator: GPS-blue, GSM-green, Power- ... redWorking Voltage 9-24V DCWorking Current About 22mA (12vDC)Working Current About 12mA (24vDC)GPS ... years experiencesExporting all kinds of GPS tracking system,gps navigation,gps data logger, car dvr ,gps dvr etc. to Europe, ...