COMMANDMICIII 

Enjoy complete control of your IC-M504 and IC-M602 fixed-mount marine VHF radio from a remote location with the Icom HM-162B COMMANDMICIII. The COMMANDMICIII which fits comfortably in the palm of your hand--in effect serves as a second station for your vessel. Need to call a fellow boater or make a distress call but don't have time to trudge all the way to the main radio? Pick up a COMMANDMICIII, an ideal communications accessory for the deck, fly bridge, or main cabin (the mic must be located within 70 feet of the main radio). 

The COMMANDMICIII sports such features as: a sizable built-in LCD, an extra-large 1.7-inch speaker, and a multifunction jog dial that offers quick and easy access to all the controls on your radio, including channel selection, volume, squelch, menu settings, DSC calls, and foghorn functions. You can even use the COMMANDMICIII to talk with the main unit as an intercom, making onboard communication easier than ever.