... Back up videos through internet H.264 expressive 3G Mobile DVR for Bus, Taxi, Police carsFeatures:3G SIM card ... Network transmissionIndependent 4CIF,CIFor QCIFPlayback Frame ratePAL: 1~25 fps ,NTSC: 1~30 fpsRecord band rate16K~2M adjustable,Customizable ... 1 for speedAlarm Input4Ch,5V@10mAAlarm Output2Ch,1A@110VRecord modeContinuous, Cycle, Schedule, Alarm, Motion detectionVideo search method By Channel, ...