Abstract: See What's Behind You is a security technology device that gives people the ability to see and monitor what's coming behind them at a 180 degree rear view angle whether it's human or animal while facing forward. A battery operated camera system is connected by video cable to a screen and memory card that captures recorded activities in real time video. The technology is incorporated in any head gear such as caps, helmets and eyewear including sun visors. It's used during personal outdoor activities that bring concern and it's used in professional industries such as branches of Homeland Security to enhance safety with rear vision. It exposes elements of surprise attacks giving people the advantage to conspicuously judge the situation, respond to it quickly and appropriately while lessening their chance of becoming a victim, the real time video images can be used to file a police report.