Network video recoder Real time 4CH NVR 720P real-time recording 4CH simultaneous playback 2-way audio WETRANS ... .6. Support USB storage and mouse operation Item no. TN-6004ASystem StructureEmbedded LINUX design ,dual core DSP, pure hardware ... internet access indicator light Business Functionsupport mouse operation and OSD, real time video transmission , WEB monitor client, support VM3000 platform ...