The Shure SLXD3 is a professional digital plug-on transmitter designed to convert high-quality wired microphones into wireless transmitters, offering cable-free flexibility for broadcast, theater, and live sound applications. It features a male XLR connector that plugs directly into the output of any compatible wired microphone, drawing phantom power when necessary and transmitting the audio via a robust digital wireless link to an SLX-D series receiver. This allows performers and presenters to utilize the specific sonic characteristics of their favorite studio or instrumental microphones without being tethered by cables, enhancing mobility on stage or on set.

The transmitter incorporates Shure's digital wireless technology, providing clear audio with a wide dynamic range and strong resistance to interference. It includes a high-quality preamplifier with sufficient gain for low-output microphones and provides switchable phantom power (12V or 48V) to operate condenser microphones. The unit is designed with a clear LCD screen and intuitive controls for adjusting gain, frequency, and other settings directly on the device. Its compact and lightweight form factor minimizes added bulk to the microphone setup, and it is powered by two AA batteries, offering extended operational life suitable for all-day events.

The SLXD3 is built with a durable metal housing to withstand the rigors of professional use. It integrates seamlessly into the SLX-D ecosystem, supporting features like automatic frequency scanning and remote control via compatible software. By providing a transparent wireless extension for prized wired microphones, the SLXD3 offers sound professionals unparalleled flexibility, preserving the critical sonic signature of the source microphone while liberating it from cable constraints for dynamic presentations and performances.