Megaphones look like simple devices but they have played an important ..
In 2025, technology continues to revolutionize communication, ..
Recently megaphones are an important device in protests and rallies ..
The sound amplification has played an important role in communication, ..
In 2025, the demand for high-quality megaphones continues to grow ..
As we are going to discuss the megaphone. What is a megaphone?. ..