Icom HM-158LA Compact Speaker Mic w/ Alligator Clip Compact speaker mic with alligator clip Listen only port Works with Icom F14, F24, F3001, F3011 41 RC, F3021, F3031S 81, F3101D 01 RC, F33GS 56, F4001, F4011 41 RC, F4011 42 RC, F4021, F4031S, F4101D 01 RC, F43GS 82, F43TR 51, F43TR 52, F33GT 06, F43GS 91 series radios and V80 Amateur Portable radio.