... 4. DVR Black box technology CCTV Camera DVR System: Product Introduction:1.H.264 double stream, ... DDNS,NTP,Email,IP authority,IP search,web alarm center),(WEB,client viewer)5.Support multiple-ch 3G ... SDK secondary development SpecificationModel1204HVsystemsCPUSOCOperation systemsLINUXSystems sesourceMultichannel record,palyback,web,USB backup simultaneouslyInterfaceGUI16 bits full color GUI,Support ...