SENNHEISER SAY :
The MD 421 II is one of the best known microphones in the world. Its excellent sound qualities enable it to cope with the most diverse recording conditions ..
They are not wrong, the MD421 is a rugged professional microphone which has a 5 position bass bass roll off switch, it has effective feedback rejection and a clear sound. We have 6 available all with the proper Sennheiser MD421 mic stand clips and all working well - but they are showing signs of wear
Watch the review of the Sennheiser MD421 mic on You Tube