What is the purpose of the two small black metal movable wings on the microphone accessory?
The two small black metal movable "wings" (or levers) you are referring to are part of the shock mount included with the Marantz Professional…
Manuals+ Q&A
Marantz Professional MPM-1000 XLR Condenser Microphone User Guide — questions & answers
Read product questions and troubleshooting answers linked to Marantz Professional MPM-1000 XLR Condenser Microphone User Guide.