Product feature: 1.4CH digital wireless camera & DVR system 2.Simple installation- no cables required 3.Total digital wireless , no interferences, no privacy leak 4.7" LCD monitor with integrated video recorder 5.Support up to 32GB SD card and external (not include) 6.Support 4 cameras/ 24hours/7days non-stop overwrite recording 7.Multiple recording modes: manual, schedule ,and motion activated 8.15meter night vision range 9.Video quality: 4CH VGA 10fps , 1CH VGA 30fps 10.Weather proof outdoor cameras with 300m/1000ft transmission open range 11.Video output function for bigger monitor