· 4CH digital wireless camera & DVR system · 2.4GHz digital wireless, no interferences, no privacy leak · Support up to 32GB SD card or external 2TB mobile disk by USB2.0 · Support 4 cameras/ 24hours /7days non-stop overwrite recording · Multiple recording modes: manual, schedule, and PIR activated · 20 meter night vision range · Video quality: 4CH VGA 15fps, 1CH VGA 30fps · IP 66 Weather proof outdoor cameras with 300 m/1000ft transmission open range · A/V output function for bigger monitor · IR-cut filter embeded