Shure SM31 vs PGA31: Which Microphone Is Best for Fitness Instructors?
Compare Shure SM31 vs PGA31 wireless headset mics for fitness instructors. Learn which microphone works best for indoor cycle, HIIT, yoga, and group fitness classes.

We are here to help! We understand how essential it is for your instructors to have the right equipment to effectively lead their classes. That’s why we've handpicked the microphones and sound systems seen in this collection based on previous Crunch franchise orders. The items shown first are the most commonly sold products for Crunch Fitness franchises. We have also included products we recommend over the Shure BLX system we commonly see used at Crunch locations. Please reach out to us for any system recommendations or questions you may have.
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5.0 / 5.0
6 Reviews
The Shure BLX1 Bodypack is the bodypack transmitter for the Shure BLX wireless microphone system. Broadcasts to the Shure BLX4 receiver. Uses a TA4...
View full details5.0 / 5.0
1 Review
Don't sweat it—get your groove back with the Shure GLXD1+ Bodypack Transmitter! This game-changing replacement transmitter is perfect for fitness i...
View full details4.83 / 5.0
6 Reviews
This is an additional transmitter for Fitness Audio UHF Wireless System. Use this UHF Transmitter for Fitness Audio U-Series Wireless System as an...
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Compare Shure SM31 vs PGA31 wireless headset mics for fitness instructors. Learn which microphone works best for indoor cycle, HIIT, yoga, and group fitness classes.
Acoustic treatment helps gyms and fitness studios reduce echo, improve instructor clarity, and create a better member experience. Learn how wall panels, ceiling clouds, and corner treatments solve sound bounce issues when moving into a new space or upgrading an existing facility.
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