This Camera Is A Complete Dvr System Solution. It Has Functions Of Real Time Viewing (Video Out), Real Time Video Recording (Built-In Micro Sd-Card Storage), Motion Detection, Night Vision, Photosensitive Induction And Cycle Recording. - The Key Advantage When Comparing With Normal Dome Cameras, It Can Perform All Functions As A Dome Camera, Additionally It Can Do Real Time Recording. No Extra Dvr Devices Required, Cost Saving And More Convenient.