The police are equipped with walkie-talkies, which can enhance the communication efficiency between various units, thereby strengthening the management of social security. Imagine that when an emergency occurs, because there is no effective contact information, the incident can be quickly What a serious mistake it was to miss the opportunity in the early stages of pacification. As for the background of use, since the emergence of wireless communication methods, the most efficient communication method has always been used in the military and police departments. This is also the most common point of all technological advancements.