The Shure UR4S is a professional single-channel UHF true diversity wireless receiver, representing a core component of the premium UHF-R series wireless systems. Engineered for mission-critical applications in live performance, broadcast, and large-scale installations, it delivers exceptional RF stability and audio fidelity. Operating on user-selectable frequencies within its designated UHF band, the UR4S employs a sophisticated true diversity reception system with two independent tuners and antennas that continuously select the strongest signal, effectively eliminating dropouts and combating multipath interference. This ensures a robust and reliable wireless link for compatible UHF-R handheld or bodypack transmitters, even in the most challenging RF environments.

A hallmark of the UR4S is its comprehensive feature set and system integration capabilities. The receiver features a large, backlit LCD screen that displays detailed information including operating frequency, RF and audio levels, transmitter battery status, and system alerts. It offers both analog audio outputs (balanced XLR and unbalanced 1/4-inch) and digital AES3 output for maximum connectivity flexibility. Advanced networking via an Ethernet port enables seamless integration with Shure's Wireless Workbench software, allowing for remote control, monitoring, and coordination of large, multi-channel wireless networks from a central computer—a critical capability for major tours, broadcast productions, and complex fixed installations.

Built to the rugged standards required for touring, the UR4S is housed in a single rack-unit metal chassis designed for continuous, reliable operation. It is trusted by the world's leading sound companies and broadcasters for its bulletproof performance, advanced control, and sonic transparency. When paired with UHF-R series transmitters, it forms a complete, professional-grade wireless link that delivers crystal-clear audio with the reliability and system management features needed for applications where wireless failure is not an option.