The Icom HM-157 CommandMic II is a convenient second station for many Icom VHF radios. Enjoy convenient operation of your Icom VHF radio from up to 70′ away. Originally designed for use with the M422, the COMMANDMICII also controls most functions, including channel selection, PTT, volume up/down of the M402, 422, 502, 504 and 602, 604 radios.
Features:Manufacturer-rated submersible to IP-X7 standards
Includes 20′ of cable