... car mobile DVR * H.264 compression * 3G,GPS,G-sensor * hard disk housing * DC 8~36v Description ... , connecting 4 channel cameras, builting in 3G,GPS,G-sensor ,wi-fi function, and car mobile dvr model ... ~ 70 °C* Electronic anti-shake design,* Built-in G-sensor ,GPS (work on Google map )* CIF,HD1,D1 ... .0—2.0vdistortion plus noise ≤-30dBaudio compression G.726Alarm PROCESSINGAND STORAGE 6 way alarm inputs, ...