Motorola XTL5000 XTL2500 MotoTRBO CABLE, MOBILE MIC EXTENSION, 10FT PMKN4033A
MotoTRBO DGM 4100, 4100+, 6100, 6100+. EXTENSION, 10FT GCAI. If your radio unit has the round GCAI mic connection, then this extension cable is compatible. If the mic connection is rectangular, then it will not be compatible.