Microphone, Dynamic, Type M-87/AIC- Military 5ohm

"Microphone, Dynamic, Type M-87/AIC, 5ohm- Used on helicopter flight helmets like the SPH-4, 4B, SPH-5, etc. Also used on HGU helmets w/ boom assembly. We have several colors avaiable: Black (current issue), Olive Drab Green (1970s-90s on SPH-4s), Sage Green (1960s-1970s)."