Sennheiser MD 21-U Omnidirectional MicrophoneThe black MD 21 U Omnidirectional Microphone from Sennheiser is a dynamic microphone that can be used for both speech and broadcasting applications such as interviews, reporting, or discussions. It can also function as a boom or room microphone. The MD 21 U features a rugged all metal body and is designed to be very insensitive to both pop noise and handling noise. It is equipped with an integrated microphone clamp and thread.