-Built-in antenna -Tracker by SMS or GPRS -Real-time tracking at intervals -Resend data from the signal dead zone -GPS inflection point supplementary transmission -APN adaptive status query -Low power alarm -Over-Speed alarm -Geo-fence alarm -GPS+WIFI+LBS+AGPS positioning tracking -Vibration alarm -Remote pickup -History playback Features; -Sim card slot -Strong Magnet -GPS status indicator -Microphone -Charging Lamp -USB Charging port -GSM status indicator Specification; -GSM Frequency; 850/900/1800/MHZ -LBS Positioning Accuracy; 100-500m -GSM Antenna; Built-in -GPS Chipset; 2503D -GPS Sensitivity; -159 dBm -GPS Frequency; L1, 1575.42 MHz -Channels; 35 channels examine the track -GPS Positioning Accuracy; 5-10m, 2D RMS -Package weight; 300g -Package dimensions; l=13cm x h=5.3cm x w=10 What's in the box 1 X GSM Status Indicator GPS Vehicle Tracker