Raymarine Fist Mic Assembly f/Ray60, 70, 63 73 [R70430]Fist Mic Assembly for Ray60, 70, 63 & 73 Raymarine's replacement detachable fist mic with built in controls and mic relocation capability. The fist mic has built in controls for channel up down, hi low power selection, and instant access to channel 16 or another preferred channel. The fist mic also features noise canceling technology so you'll always be heard loud and clear regardless of engine or background noise. Raymarine's fist mic is also