... 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 ( ... 1RS232, 1RS485, 1RS422Memory Port1 USB2.0, 1 SDVideo Status Monitor port6,1 for speedAlarm Input4Ch,5V@10mAAlarm Output2Ch,1A@110VRecord ...