Sennheiser MAT 133-S Table Stand with Programmable Mic Button (Black)The black MAT 133 S Table Stand with Programmable Mic Button is for connecting and operating XLR gooseneck microphones. It is used in audio applications such as in lectures, boardrooms meeting rooms, and more. The MAT 133 S is built rugged and provides a XLR 3F microphone input and a XLR 3M microphone output. It features a bi color LED for status indication and programmable button for On, On Off, PTT, and PTM modes. This table stand uses 24 to 48V