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The SM31FH Fitness Headset Condenser Microphone from Shure is a cardioid condenser headset microphone designed to be used by fitness and aerobics instructors. It has integrated moisture-repelling hydrophobic fabric that helps protect the microphone capsule from sweat and humidity. A windscreen is included.
Wearable wireframe headset designed for a secure, comfortable fit made for fitness and aerobics instructors
Integrated moisture-repelling hydrophobic fabric protects the microphone element from harmful corrosion for use in humid environments
Flexible gooseneck design provides discrete adjustment options to optimize placement for greatest isolation
Compatible with Shure wireless bodypack systems for direct replacement of TA4F-connected microphones
Lightweight and low-profile form factors help avoid fatigue during high-impact use
Tailored frequency response refined for crisp and clear vocal reproduction
In the Box
Shure SM31FH Fitness Headset Condenser Microphone
Limited 1-Year Warranty
Table of Contents
45 Hz to 20 kHz
600 Ω @ 1 kHz, typical
Audio Output Level
Signal to Noise Ratio
66 dB @ 1 kHz
145 dB, @ 1 kHz (1,000 Ω load)
117 dB, @ 1 kHz (1,000 Ω load)
28 dB, typical, A-weighted
+5 V DC (nominal), 10 V maximum (DC bias)
Positive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1