Features r r view record from 4 cameras simultaneously during the day night indoors or outdoorsr includes 4 weather resistant high resolution 650tvl cameras with powerful night vision to 82ft25mr add 2 more cameras for full 4 channel monitoringr set forget by recording continuously from up to 4 cameras for 120 days onto a 500gb hard drive longerr with motion detectionr save time have peace of mind by easily locating incident video then transfer to usb flash driver surveillance in