This type of microphone is symbolic and was used in many clubs back then. When I think of 20's music club performances, I think of these microphones.

"Be careful, Captain Levi, we wouldn't want your cadets thinking you're.....inferior," Leaving him with a slightly bruised ego, Levi had never been aroused, infuriated, and humiliated by a woman before, the sensation below his belt like a raging tempest waiting to conquer and destroy. Levi Ackerman x Black Fem OC