The Shure ULXD2/SM87 represents a high-tier wireless microphone system component, combining a ULXD2 digital handheld transmitter body with a pre-integrated SM87 condenser capsule. This system is engineered for professional vocal applications where exceptional audio clarity, reliable wireless performance, and robust build quality are essential. The digital transmitter operates in Shure's premium ULX-D frequency band, utilizing 24-bit/48 kHz digital audio resolution to capture the full dynamic range and nuance of a vocal performance without the analog companding artifacts associated with older wireless technologies. The integrated SM87 microphone capsule is a unidirectional (cardioid) dynamic design renowned for its smooth, tailored frequency response that provides excellent gain-before-feedback and effectively minimizes off-axis noise, making it a favored choice for demanding live sound stages, broadcast, and theatrical productions.

System management and reliability are cornerstone features of the ULXD ecosystem. The transmitter employs advanced encryption capabilities to secure audio transmissions, a critical feature for broadcast and confidential speaking environments. Its intuitive LCD display provides real-time status information, including battery life, RF signal strength, and audio level. Frequency coordination is greatly simplified through features like Automatic Frequency Selection and Shure's proprietary Wireless Workbench software, which allows for remote monitoring and control of an entire fleet of receivers and transmitters from a computer, ensuring interference-free operation even in the densest RF environments. The transmitter body is constructed from durable materials designed to withstand the physical demands of nightly use.

Operational efficiency and versatility are further enhanced by the system's intelligent power management. The transmitter utilizes a rechargeable lithium-ion battery system, offering extended runtime and the convenience of docking station compatibility for centralized charging and deployment. The combination of the ULXD2's advanced digital wireless platform with the sonic characteristics of the SM87 capsule creates a seamless, high-performance tool for the professional vocalist. It delivers consistent, clear, and secure audio with the robustness expected from professional-grade wireless equipment, providing engineers and performers with confidence in any critical live or recorded application.