The flexi-boom microphone (MT31) from Peltor can be used on the ComTac and SwatTac units. The goose-neck boom microphone comes with a cup windsock (M60/2) and meets the government standard of 150 ohm dynamic noise canceling. Connects via a nexus 2-pin plug. Requires the use of a microphone harness assembly and in-line radio PTT (Push-To-Talk) adapter cable for 2-way communication.