It is not illegal to turn on the village horn. According to relevant information, the big horn in rural areas is a propaganda tool for village committees. It is not illegal to broadcast frequently during the day to publicize the policies of the party and the state, arrange the current work, or broadcast some cultural programs. Speakers are divided into several different musical instruments, one is a wind instrument, which is thin on the top and thick on the bottom, mostly made of copper. The other is a modern electro-acoustic element, which converts electrical signals into sound, also called a speaker.