4CH 3G Mobile DVR for Bus, Taxi,Police cars 3G SIM card supported Back up videos through internet H.264 expressive 3G ... Mobile DVR for Bus, Taxi, Police carsFeatures:3G SIM card supportedBack up videos through internetH.264 expressive with D1 resolution ... resolution(PAL:704×576,NTSC:704×480)Dual Stream-Main120FPS@CIF(NTSC);100FPS@CIF(PAL)Dual Stream-Aux30FPS@CIF(NTSC);25FPS@CIF ...