Shure 55 Cardioid Unidyne Model--1950-71
This is a super cardioid unidirectional moving coil mic. It is
also a dynamic mic which provides a wide range of high
quality reproduction of sound. The moving coil element moves
in conjuction with a high flux magnet resulting in high efficient
and smooth peak free response from 40 to 15000 cycles.
Willie Nelson -.- always on my mind