DVR 1. High-quality video, low power 2. Reliable system, long recording time. 4. Supports 1 remote controller, 1 USB. FunctionDescriptionHardware1VideoInput channel4 channels (Composite signal), connector = BNCOutput channel2 channel (Composite signal) , connector = BNCInput standardNTSC or PAL2AudioInput channel2 channel, connector = A/V connectorOutput channel1 channel, connector = A/V ...