Maximal Power 2 Way Radio Surveillance Earpieces for ICOM 2 Pins Plug, Compatible with ICOM F3G, F4G, F11, F11S, F14, F14S, F21, F21S, F24, F24S, F33GS, F33GT, F43GS, F43GT, F3021, F4021 2-Ways Radio Models