The Telex FMR-70 is a professional wireless microphone system designed for reliable, clear audio transmission in presentation, performance, and installed sound applications. The system typically comprises a handheld or bodypack transmitter and a matching diversity receiver. It operates on user-selectable UHF frequencies, providing a stable link that is less prone to interference than VHF systems. The system utilizes companded FM transmission to deliver good audio quality with effective noise reduction. Engineered for ease of use, the receiver often features straightforward controls for power, frequency selection, and audio level, with clear LED metering for signal strength and audio output, making it accessible for operators of all experience levels.

The handheld transmitters are built with durable housings and integrate quality dynamic microphone capsules suitable for vocal reinforcement. Bodypack transmitters offer a compact, lightweight design with a secure belt clip and a standard mini-jack input for connecting lavalier or headset microphones. A key feature of many systems in this class is true diversity reception, where the receiver uses two antennas to continuously select the strongest signal, effectively minimizing dropouts caused by multipath reflections as the user moves around the stage or venue. This ensures consistent audio quality, which is critical for presentations, theatrical performances, and worship services.

As a robust and practical wireless solution, the Telex FMR-70 system is valued in educational institutions, houses of worship, corporate meeting rooms, and by touring musicians for its dependable performance and straightforward operation. It provides a significant upgrade in reliability and sound quality over basic wireless systems, offering the essential features needed for clear, hands-free audio reinforcement without excessive complexity. When properly set up with coordinated frequencies, it delivers interference-free audio that users can rely on for important communications and performances.