Shure RK304T Tan Foam Windscreen & Tie Clip

Shure PA421SWB Antenna Combiner For PSM Systems The Shure PA421SWB 4-Port Antenna Combiner will combine RF (Radio Frequency) signals and distribute power to up to 4 Shure PSM series transmitters. The PA421SWB will effectively improve overall RF performance and eliminate the clutter associated with excessive antennas and power cables.