ARCO  cm1 condenser microphone for  all ICOM hf radios that use 8 pin round or modular mic connector   .....Designed to plug directly into your Icom  hf radio without external accessories......High output condenser microphone  provides unsurpassed clarity and  fullness for varying band  conditions... ..Superior  transmit audio direct no eq needed ....Excellent rfi characteristics..... Plug and play... Lightweight microphone with a  weighted base .........PTT switch....Package includes  a 4' well shielded cable terminated  into a  8 pin round  mic connector or modular  directly soldered    ... Units work on vox or ptt   ... ....Mic stands 13" tall with metal gooseneck extended ...6.2 oz weight ... Comes with 8 pin round or 8 pin modular ..   ..PLEASE SPECIFY IF YOU ARE USING A RJ45  MODULAR JACK MICROPHONE RADIO.  
Sensitivity -54db
Omni directional
Freq resp 100-16000
Uses voltage from your radio