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          http://www.doorbellalarm.com/