Flight Helmet Plastic Earcups with Coiled communications cable, Boom Mic and Earphones Military H 143/AIC, this assembly is ready to install in most SPH 4B and 5 flight helmets, comes with either G/A or U-174 plugs and earcup earseal , very good to exellent condition, Please note that all our items are pure collector items or display items. The items are not tested for real use and have no aeronautical exams or clearances. Use is at your own risk !