The Shure U2/SM58 is an integrated professional wireless handheld microphone system that pairs the advanced UHF-R series wireless transmitter electronics with the globally recognized Shure SM58 dynamic vocal capsule. This combination delivers the exceptional sonic character and durability of the classic SM58 microphone with the high-performance, touring-grade wireless reliability of the UHF-R platform. Designed for the most demanding live sound environments, including major tours, broadcast, and large-scale installations, this system provides robust RF stability, superior audio transparency, and extensive user-programmable features. The handheld unit integrates a full-featured UR2 transmitter into a rugged metal body, topped with the familiar spherical grille and tailored vocal response of the SM58, offering performers a trusted microphone feel with uncompromised wireless freedom.

The system's wireless capabilities are anchored by the UHF-R technology, which includes features such as true diversity reception (when used with a UR4 series dual-channel receiver), advanced audio companding for crystal-clear sound, and extensive frequency agility. The handheld transmitter itself features a backlit LCD screen that displays real-time information including frequency selection, RF and audio levels, and remaining battery life. It supports infrared synchronization for quick and accurate cloning of frequency and setup data from the compatible receiver, streamlining system coordination. Powered by two AA batteries, it offers extended operational life, and its metal construction is engineered to withstand the physical demands of rigorous nightly use on tour.

For audio engineers and performers who will accept nothing less than the best, the U2/SM58 system represents a pinnacle of integrated wireless vocal tools. It solves the critical challenges of large-channel-count wireless deployments through features like high-density mode, which maximizes the number of compatible systems in a given RF space, and networked system control via software for remote monitoring and frequency management. The result is a wireless microphone that provides the iconic, feedback-resistant SM58 vocal tone with the rock-solid RF link, exceptional range, and interference rejection required for world-class performances. It is the definitive choice when the absolute reliability of the vocal chain is non-negotiable.