Description:1. Newest generation GPS chipset2. Built-in GPS/GSM antenna,Quad band3. Buit in battery (270mAh)4. GPS chipset with high sensitivity, High integration density5. Wide range power input 8-90V6. 3000 points history trace can be saved without GSM coverage7. Quick GPS fixed with Assist-GPS technology8. Real time tracking via Web, APP and SMS9. Built-in vibration sensor, perform vehicle intelligent robbery protection10. ACC detection, to upload status of vehicle operation11. Oil cut off12. Voice monitor13. Over speed alert, Vibration alert, Power cut off alert, Low battery alert, Geo-fence alert14.3 special numbers for SOS alarm and burglar alarm15. SOS alarm button for emergency callFunctions:1. Built-in high sensitive GPSGSM antenna2. ACC ignition detection3. SOS button for SOS alarm4. Voice monitor function5. External power disconnect alarm for anti-theftFAQ: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 and 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 and pay the fee or update GPRS.3. Why you can not monitor?Because you didnt set up the specific number and open the caller display of y