The HH-185 microphone boom allows the M-216 microphone transmitter to be used as a handheld wireless microphone. It may be passed around in a group setting or held in the hand and pointed at the desired sound source. The gain control on the M-216 transmitter allows the user to adjust the sensitivity of the microphone. The HH-185 may also be used with the PR-216 Option P microphone input to selectively point to a sound source in a group setting.