The Shure UA221 is a passive antenna splitter/combiner designed to facilitate the distribution of RF signals to multiple receivers from a single pair of antennas, or to combine signals from two antennas to a single receiver
This flexibility makes it an essential tool for complex wireless microphone setups, ensuring a reliable signal path while minimizing the need for additional antennas
The compact and durable design of the UA221 makes it suitable for both portable rigs and permanent installations.