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Description:
style="text-align: left;">| Position accuracy | 10 --15 meters |
| GSM chip | ( 4 Frequency GSM 850/ 900/1800/1900MHZ is optional) |
| GPS chip | (super-sensitivity and high accuracy) |
| LED | 3 LEDs indicates GSM signal, GPSsignal, and change |
| Button | 2 buttons, SOS button and button A |


