Description:1. Move alarm.2. Add app set.3. Add 3G WCDMA.4. Overspeed alarm.5. Add voltage 9-36V.6. Add add vibration alarm.7. ACC alarm (optional 4pin).8. GSM quad-band frequency.9. Add waterproofand dust proof.10. Real time tracking by SMS/GPRS.11. Add switch gprs mode & sms mode.12. Add ACC ignition & flameout inform.13. Cut vehicle oil or circuit (optionalrelay).14. Add AGPS function, receive GPS signals faster.15. Add built-instorage memory, Blind area data upload.16. Add detection the fuel consumption (optional 5 PIN).17. Add detection power level & voltage (optional 5 PIN).18. Add Built-in backup battery to realize power failure alarm. Feature: Content Specs Network 2G GSM/3G WCDMABand UC15-E900/2100 M Hz@UMTS900/1800 M Hz@GSMUC15-A850/1900 M Hz@UMTS850/900/1800/1900 M Hz@GSMGSM Chip DA6276GPS Chip Ublox 7020GPS Sensitivity-159d Bm GPS Accuracy 5m Time To First Fix Cold Status 45s Warm Status 35s Hot Status 1s Work Voltage 9-36 V Battery Chargeable Changeable 3.7V1000m Ah Li-ion Battery Storage Temp.-40C to +85 C Operation Temp.-20C to +55 C Humidity 5%--95% non-condensing Size 70*48*16mm Weight 40g Package Included:1 XTK300 GPS Tracker