... Standalone DVR H.264 Main Frofile 4CH D1 recorder,1CH Audio,4CH Playback VGA/TV,SATA HDD x2, Alarm,Remote control 4CH H.264 Standalone ... ,Can set up a multistage SensitivityPicture Display1,4 view showAudioAudio input1ch(BNC)inputAudio output1ch(BNC) ... CheckTime Point Retrieval,Calendar Retrieval,Fact retrieval,Channel retrievalVideo SaveLoacl HDD, NetworkRemoteMobile monitorIPhone,Android,Windows ...