Speaker drone is a megaphone designed for unmanned aerial systems which can be installed on multi-rotor and fixed-wing platforms. Based on digital wireless transmission technology, it can play recorded sound sources and do real-time broadcasting. In this case, it will be very helpful in missions like crowd management, search & rescue, emergency response, etc.. In crowd monitoring drones provide real-time data to the crowd control team. Drones can zoom in on an area of interest and in turn, provide the team with necessary information about what is happening at the place. Another big feature for our speaker drone is its lightweight design, simple structure, and small size, which makes the drone to carry it easily and fly with low resistance in the air.