Here's an RCA MI-6412 Aerodynamic Microphone from the 1940's! This is a rare model that would be hard to find another of! These microphone types were originally used for broadcasting and announcement purposes - there's no telling where this one has been over the last 80 years! This microphone is working and as expected has an old timey filtered sound. The push to talk function has been bypassed, and this one is always on. It has an XLR connector attached to the original cord. This microphone would be great as a talkback, effects microphone, and more. Grab this rare 1940's RCA Aerodynamic Microphone!