The Sentinel makes it easy to record, play back, and transfer security video. It comes with a Digital Video Recorder (DVR) and 2 night vision cameras. Place your cameras outdoors or indoors, and record all your captured footage onto the included Secure Digital (SD) card. The SD card is 2 gigabytes, giving you up to 9 hours of recording time. Watching your recorded video is a breeze. Play it back on the DVR, or take the SD card with you and play it on any computer. You can even transfer your footage to your computer's hard drive to keep an archive of all your security video. SD card recording also allows you to submit the SD card as evidence if you catch someone in a criminal act. The compact and stylish cameras capture everything, even at night, thanks to the 11 infrared LEDs. They automatically activate when it gets dark, which allows you to record both day and night. It also has motion capture capabilities. When movement is detected this system can be set to record a video clip or a still snapshot. The Sentinel is easy to set up and use, and is ideal for both home and business owners. What's Included DVR 2 cameras 2GB SD card 2 camera mounts Mounting Hardware 1 RCA Wire (male) 3 power adapters 2 60ft extension cables 2 window warning stickers