For auction  heil sound microphone. Not sure if the model is HM 4- 5BUT HAS 2 ELEMENTS HC 4 AND HC 5. WIRED 8 PIN PLUG FOR KENWOOD  HF TRABSCEIVERS. TESTED ON TS 50S AND WORKING FINE. I DON'T TEST ON OTHER KENWOOD  RADIO LIKE TS 430 440 450 850 ETC BUT I THINK WORKS ON THE RADIOS. SAME PLUG 8 PIN.LOOK PICTURES. again  not sure the model. Sold as is but working. Thanks for looking