It has front and rear cameras that work on a display screen installed in place of the car's central mirror. The mirrors function as regular mirrors when the screen is off and operate as a full-size screen when on. The screen is the same size as the mirror, 10 inches. It records everything in front and behind, which gets saved to the memory card. It's very good if you don't want to install a screen or need a backup camera. I bought it to install, but unfortunately I had to sell the car. Contact me if interested. Price negotiable.