Microphone cord for wire booms.  These cords are made from high-quality two-conductor cable with high strength conductor materials.

These end on both sides with a male U-173 plug. (Other ends available, such as the U-172, MJ-113.)

Order the 7 inch length for the HGU-33, HGU-55, HGU-68, and the HGU-84 helmets, and order the 14 inch length for the SPH-5 and SPH-56 helmets.