H.264 SVR7300 Video Compression Stand Alone DVR Support VGA output, monitor output Linux RTOS, ... control6 levels( adjustable)Screen Split1,41,4,91,4,9,12,16Recording modeManual, schedule, alarm, motion detectionStorageLocal or from remote ... Input1ch1ch4chAudio Output1 ch audio output, BNC, 2Vp-p, 600ΩTwo way talk1chOutput sampling rate8KHzSample size16bitWorking environmentNetwork Port1 pc 10/100M ...