A dynamic microphone is a type of microphone that uses an electromagnetic principle to convert sound into an electrical signal. It consists of a diaphragm attached to a coil of wire placed within the magnetic field of a magnet. When sound waves hit the diaphragm, it causes the diaphragm to move, generating an electrical current in the coil, which is then sent as an audio signal. Dynamic microphones are known for their durability, ability to handle high sound pressure levels, and resistance to moisture, making them ideal for live sound situations and rugged environments. They are commonly used for vocals, instruments, and public speaking.