... 4 channels real time mobile DVR, Vehicle DVR, which can be widely used in cars, household, office, supermarket, etc. Name: 4 channels real time mobile DVR ... and updating;10.Support IEE802.00b/g wireless network (one wireless channel ... lost,motion detect,and event trigger ect alarm functions(area and sensibility ... , MIC interfaceNetwork InterfaceOne Ethernet 10/100Mbase-TX with indicator, RS485 interface, ...