Features： 1、Build in 1M memory and support 2G SD card. 2、 Support non-server based location. 3、 Authorize/delete the tracking phone number 4、 Support covert alert and voice surveillance. 5、 Geo-Fence: alert in case of breaching the predefined district; Movement alert: alert in case of movement; Speed alert: alert in case of excess of the pre-defined speed; Power alert: alert when device is being switched off. Specification： Network: GSM/GPRS Band: 850/900/1800/1900Mhz GSM/GPRS Module: Simcom300d or Simcom340d GPS Chip: SIRF3 chip GPS Sensitivity: -159dBm GPS Accuracy: 5m GPS Start time: Cold status: 45s, Warm status: 35s, Hot status: 1s Voltage of car power system: 12 V -24V Backup battery: Chargeable 3.7V 800mAh Li-ion battery Storage Temp: -40 to +85 Operation Temp: -20 to +65 Humidity: 5%--95% non-condensing Size: 54 x 62 x 26mm/2.12 x 2.44 x 1.02 in Four types Tracking ways: Tracking way A>: SMS + Map software(It's free) Tracking way B>: PDA Cell Phone(It's free) Tracking way C>: Real time tracking, and track via your computer(It's free) Tracking way D>: simple & useful real time tracking via our website which you can find on manual. (only the on-line web page tracking software has one week free trial, after that it is about 10USD per year.) Description and functions: 1. Car GPS Tracker and Alarm System with Web based and PC based software by SMS/GPRS, Geo fence supported. 2. Support orientation without orientated server, it can find out Real-time longitude and latitude, time and speed. By using public map software and entering longitude and latitude manually, you can find out the real-time information of position. 3. If the aims you are inquiring enters into underground parking lot or other GPS blind area, the tracker will inform you the last orientation. 4. Remote Engine-stop and Resume. 5. Tracking function by timing and frequency. 6. Authorized number added and deleted function. 7. Support hidden alarm and monitor function. 8. Geo-fence: Set up a Geo-fence for the unit to restrict its movements within a district. The unit will send the message to the authorized numbers when it breaches the district. 9. Power supply disconnection alarm. 10. Door alarm. 11. ACC alarm. 12. Movement alert: you can set up barriers when the vehicle is stopped. Once moved, it can give an alarm to the authorized number. 13. Over speed alarm: you can make the inspected aims run according to fixed speed. It alarms when speed is exceeded. 14. Low battery alarm function. 15. Check the vehicle status. 16. The GPS device support phone tracking and 8 languages(English, Spanish, Portuguese, Arabic, Thai language, Italian, German, Chinese) website tracking. Package List： 1 x Vehicle Car GPS Tracking Device 1 x GPS Antenna(3 meters long) 1 x GSM Antenna(2 meters long) 1 x 10-PIN Harness 1 x Lapel microphone 1 x User Manual