Icom M410BB 11 Black Box VHF w/Black Command Mic 2 Command Mic Ports [M410BB 11]M410BB 11 Black Box VHF with Black Command Mic & 2 Command Mic Ports Icoms M410BB is a flexible black box mounted on a fixed mount that provides VHF communications for vessels with limited helm space. The supplied black CommandMic controls the radio for essential communications on the water. Clean Installation for Limited Helm Space The M410BB consists of a CommandMic and a black box RF unit. Use the CommandMic for all operations, including DSC.