Skip Navigation Website Accessibility
  Our Planet Needs More Musicians

Shure SM31FHTQG Cardioid Condenser Headset Sport Mic

he 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.


  • 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
  • Windscreen
  • Limited 1-Year Warranty


  • Form Factor: Headworn
  • Capsule: Electret Condenser
  • Polar Pattern: Cardioid


  • Frequency Range: 45 Hz to 20 kHz
  • Maximum SPL: 145 dB SPL (1 kHz, 1-Kilohm Load)
  • Impedance: 600 Ohms at 1 kHz
  • Output Level: 50 dBV/Pa
  • Dynamic Range: 117 dB (1 kHz, 1-Kilohm Load)
  • Signal-to-Noise Ratio: 66 dB (1 kHz)
  • Equivalent Noise Level: 28 dB A-Weighted (Typical)


  • Output Connectors: 1 x TA4F
  • Cable Length: 45" / 1.1 m


  • Operating Voltage: 5 to 10 V


  • Color: Black
  • Weight: 2.11 oz / 60 g