The Lectrosonics MCA5X Plug-On Transmitter Adapter is a handy device with XLR male and TA5 male connections. The adapter converts Lectrosonics headset and lavalier microphones with TA5 connections, so that they may be used with Lectrosonics plug-on transmitters (UH & HM series). Phantom power is passed to the electret-condenser microphones, eliminating the need for an additional bodypack transmitter for any reason.