Home Avionics 40688G-74 KIT,DOME & MIC BOOM ASSEMBLY 40688G-74 KIT,DOME & MIC BOOM ASSEMBLY 40688G74 SKU: 40688G-74 Categories: Avionics, Avionics & Instruments, David Clark, Headset Accesories, Pilot Supplies Tags: assembly, boom, DOME & MIC, KIT