The SM31-TQG from Shure is a cardioid fitness headset condenser microphone specifically engineered for fitness instructors and high-energy performance environments. Designed with moisture-repelling hydrophobic construction, it protects the microphone element from corrosion caused by sweat and humidity, making it ideal for aerobics classes, gym training sessions, and other demanding indoor fitness applications.

Built on Shure’s trusted SM microphone platform, often referred to as the SM31FH fitness headset, this model incorporates hydrophobic materials into a rugged and road-tested design. The wearable wireframe headset provides a secure and comfortable fit, ensuring stability during intense movement. Its lightweight and low-profile form help reduce fatigue during extended or high-impact use. A flexible gooseneck allows discreet and precise adjustment for optimal microphone placement and improved vocal isolation.

The SM31-TQG features a TA4F (TQG) 4-pin connector, making it fully compatible with Shure wireless bodypack systems and a practical replacement option for any existing TA4F-connected Shure headset microphone. It is available with a wide range of Shure wireless systems, known for their ease of use and dependable performance. An included windscreen effectively minimizes plosive, breath, and wind noise to maintain clean and intelligible audio. With a tailored frequency response optimized for crisp and clear vocal reproduction and Shure’s renowned precision engineering, the SM31-TQG delivers durability and consistent performance in humid and physically demanding environments.