1)small size, easy to install
2)accurate GPS positioning, dynamic positioning deviation is less than 5 m
3)support GSM voice and SMS functions, UDP / TCP protocol communications in GPRS mode
4)support the GPS data uploading at intervals and location
5)support the two way voice communication function
6)support Call Barring of group numbers function
7)support two way SMS communication via Mobile and PC software
8)support the mute function
9)support authorized tapping function
10)support protection from high or low level voltage function
11)support 5 levels of signal detection
12)support the data resend from signal dead zone function
13)support remotely locking vehicle function
14)support watching vehicle function
15)support emergency alarm function
16)support the power-off alarm function
17)support the high-voltage under-voltage alarm and alarm functions
18)support over speed alarm function
19)support parking alarm function
20)support illegal door-open, illegal engine-start alarm function
21)support fuel consumption detection
22)support fuel changing alarm
23)support mileage statistics
24)support Geo-fence alarm
25)support fatigue driving alarm
26)support temperature detection alarm
27)support a serial peripherals (such as the car handles, scheduling screen, camera )