The Shure QLXD2/SM58 Handheld Wireless Microphone Transmitter is a professional-grade wireless microphone system designed for high-performance audio applications. Featuring the legendary SM58 dynamic microphone capsule, renowned for its warm, clear sound and rugged durability, the QLXD2 transmitter delivers seamless, interference-free audio with 24-bit digital audio quality. It operates within a 64 MHz tuning bandwidth, offering 256-bit AES encryption for secure transmission. The QLXD2 is lightweight and ergonomic, with an easy-to-read LCD display and simple, one-touch sync with Shure QLX-D wireless receivers. Ideal for live performances, corporate events, and broadcast environments, it ensures reliable operation with up to 9 hours of continuous use on two AA batteries.