The program is designed to control two outlets. Or rather: supplying 220 volts to them through a relay. You can find a wide variety of applications: from turning on the TV, lighting an aquarium, lighting in a room, opening a garage door, raising a barrier, a hidden lock, an alarm, etc. In short, everything that I would like to turn on remotely at a distance of 10-15 meters, i.e. in the bluetooth range. The manual contains a description of how to assemble an executive device on an Arduino microcontroller.