The Shure SM31FH Fitness Headset Condenser Microphone is tailored for fitness instructors and performers who need reliable audio performance in humid conditions. Featuring a moisture-repelling construction, this headset is designed to withstand sweat and ensure long-lasting use. Its unidirectional cardioid pickup pattern offers excellent off-axis rejection and minimizes feedback, while the flexible gooseneck and discrete adjustments provide optimal microphone positioning. Compatible with Shure wireless systems through the TA4F/TQG connector, it is a rugged and durable choice for high-energy environments.