Definition
A megaphone is a cone-shaped acoustic horn used to amplify a person's voice or other sounds. It works by directing sound waves in a specific direction, making them louder and more audible over a distance. It doesn't require electricity, unlike electric amplifiers. Think of it as a simple but effective tool for projecting your voice. It's often used at sporting events, protests, or emergency situations. Its primary function is to increase the range and clarity of speech.