... internet H.264 expressive 3G Mobile DVR for Bus, Taxi, Police carsFeatures:3G SIM ... 30 fpsRecord band rate16K~2M adjustable,Customizable (unit:bps)Audio Input4ChAudio Input Parameter2Vp-p Line, ... OverlayYes(plate number, time, Vehicle status)Power On modeSchedule, ignition on, delayPower Off modeSchedule ... hard disk and communication module)Temperature0°C ~+60°C( Customizable)Humidity 10%~95%Protection ...