U-87 dynamic noise canceling microphone 5 ohm military applications

U-87 Dynamic Moving Coil noise canceling microphone.
This is a 5 ohm dynamic microphone designed for use in military low impedance applications.
Can delivers clear, crisp voice transmission.
Note: this is a 5 ohm low impedance suit for military but can not suit for civilian and general aviation.
Free with super high density sponge with O ring

Important note: This suit for flexible mic boom