Dynamic (click on the link here Dynamic Microphone)
The Dynamic Microphone is the most handy equipment when it comes to live shows; it is unbreakable and it is less sensitive, so it can boost loud volume, as can be seen (pictured below) it is similar to the loudspeakers for example,
A small movable induction coil, positioned in the magnetic field of a permanent magnet is attached to the diaphragm.
Dynamic can also create a feedback loop when it gets close to the speakers.
For health and safety reasons, never get too close otherwise it will damage the speakers and causes hearing loss. The polar pattern for a dynamic microphone is cardioid for only the top part of dynamic.