... Video Compression Stand Alone DVR Support VGA output, monitor output Linux RTOS,SATA HDD supported Function Feature1. ... , Spanish, Italian, France, GermanyVideo Input4chs8chs16chsVideo OutputVGA output, 1 TV output(RCA or BNC connector), 1Vp-p, 75Ω ... ADPCMAudio Input1ch1ch4chAudio Output1 ch audio output, BNC, 2Vp-p, 600ΩTwo way talk1chOutput sampling rate8KHzSample size16bitWorking environmentNetwork ...