This is a 720p Indoor Outdoor HD-CVI Bullet Style Security Camera. 720p Resolution will give you dramatic detail in your recordings. If you ever experience criminal activity, you will want the authorities to have crisp, clear recordings and that is what HD-CVI can do for you. HD-CVI uses standard coax cable and 12v DC power, so this is really good news for those who have existing analog systems and want to upgrade to High Definition Surveillance Recording. All you will need to do is replace your outdated, old DVR and cameras and replace them with HD-CVI. You will literally save 1000's of dollars in re-wiring costs that you would have to incur by upgrading to IP. With HD-CVI, the only cost is the new cameras and DVR, which are very affordable