A31 Quad Core CPU Embedded, provides stable 2channel images
142 degrees wide viewing angle
Built-in voltage control(uninterrupted power) : prevent battery discharge
Wi-Fi function (Front/Rear view live screen, playback, settings, firmware automatic update, dedicated mobilephone app supported, Automatic switch between normal and parking mode, car attack alert)
Format Free (Auto recovery system), External GPS antenna
34 kind of voice guidance and high quality voice recording