Description:1. Newest generation GPS chipset 2. Built-in GPS/GSM antenna, Quad band 3. Buit in battery (270m Ah)4. GPS chipset with high sensitivity, High integration density 5. Wide range power input 8-90V6. 3000 points history trace can be saved without GSM coverage 7. Quick GPS fixed with Assist-GPS technology 8. Real time tracking via Web, APP & SMS9. Built-in vibration sensor, perform vehicle intelligent robbery protection 10. ACC detection, to upload status of vehicle operation 11. Oil cut off 12. Voice monitor 13. Over speed alert, Vibration alert, Power cut off alert, Low battery alert, Geo-fence alert 14.3 special numbers for SOS alarm & burglar alarm 15. SOS alarm button for emergency call Functions:1. Built-in high sensitive GPSGSM antenna 2. ACC ignition detection 3. SOS button for SOS alarm 4. Voice monitor function 5. External power disconnect alarm for anti-theft FAQ:1. Why the GPS tracker device can off-line? Maybe there are 3 reasons i.e. device poweroff or outage, weak or none signal, SIM card debts or GPRS service overdue.2. How can you handle with Question 1? Firstly use your phone call the number of SIM card, then check the voltage & current data whether beyond the specified range or switch off the circuit; Take off the environment of closed or the mental objects; Call the operator of SIM card to assure the card is debts or GPRS overdue & pay the fee or update GPRS.3. Why you can not monitor? Because you didnt set up the specific number & open the caller display of y