The Night Shadow comes standard with our cutting edge "Smart" technology.This technology consist of a computerized proximity sensor, digital controls and a long-range infra-red illuminator. The proximity sensor will automatically turn the unit on and off when it is brought to the viewing position.This helps save your battery life and the life of the unit itself.The digital controls allow you to activate all of the features of the Night Shadow with an easy push of a button.We also built a powerful infra-red illuminator into the scope.This allows you to see even in total darkness with outstanding clarity.