The Shure UA221 Antenna Splitter/Combiner Kit includes two adapters that can be used as one-input, two-output or two-input, one-output passive antenna splitter/combiners for UC4, SLX4, ULXS4, ULXP4, U4S, U4D, UR4S and UR4D receivers. Features :

• The UA221 Kit lets you split an incoming signal into two outgoing signals or combine two incoming signals into one signal. Each kit includes two UA221 Splitter/Combiners, four coaxial cables, and attaching hardware.
• The UA221 Splitter/Combiners are designed for use with Shure Model UA400 1/4 wave UHF antennas, UA820 1/2 wave antennas, and UA802/UA825/850 50 ohm low loss antenna cable.
• Shure recommends using UA820 1/2 wave antennas with UA221 Splitter/Combiners. The UA820 provides up to 3 dB of additional gain compared to standard 1/4 wave antennas. The additional gain compensates for signal loss in splitting applications.