8CH D1 H.264 DVR, 8CH Audio In/1CH Out,16CH Alarm In/4CH Out digital video recorders,dvr w/ H.264 Main Profile Video ... 4.5Gb, Flash 16MB with Excellent GUI DisplayH.264 Main Profile Video Compression, enhances 2.2 times of ... DISPLAYDIVISION1, 4, 8, 9ZOOMPreview and Playback Zoom SupportRECORDINGCOMPRESSIONH.264 Main ProfileRECORDING MODEManual/Schedule/Motion Detection/SensorRESOLUTIONNTSC:704*480, ...