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.

A wireless microphone for a Fitness Facility is a significant investment because if the microphone stops working, the show or classes stop! We recommend selecting the wireless microphone based on your planned usage at your fitness facility. This usage can be calculated by the number of hours the microphone will be used on any given day in the room you plan to use the system. More info HERE.
Each microphone model has been given an AV Now sweat rating that tells you how many hours of sweat exposure can be tolerated before the sweat starts to damage the microphone. Ask us via chat or email if you want to discuss sweat ratings. From our experience, it's best to explore backup options or heavy-duty microphones for facilities with several classes per day to ensure your fitness classes run seamlessly. AV Now offers Sweat Ratings on almost all of their microphones and can help you select the right microphone for your needs.
Have questions? Reach out via chat or our contact form—we’re here to help! Or complete our online microphone finder form to get personalized suggestions from the AV Now team.
4.67 / 5.0
3 Reviews
The 16 channel Fitness Audio UHF Body Pack System with E-mic Fitness Headset Microphone is built for fitness (up to three non-consecutive classes ...
View full details4.69 / 5.0
16 Reviews
NO BELT PACK. FITNESS-RATED DURABILITY. Built for fitness with a single SEALED on/off switch, coated circuit board, NO BELT-WORN TRANSMITTER. 8 ch...
View full details4.5 / 5.0
2 Reviews
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View full detailsFitness instructors, experience the revolutionary freedom of Shure's GLXD14R+ Rackmount Wireless Microphone System with E-Mic Headset. Boasting an ...
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View full detailsThe Fitness Audio Digital Wireless Microphone System with EMic Fitness Headset is great for yoga, pilates, dance studios, or any fitness classes. T...
View full detailsFully Submersible Waterproof Wireless Mic SystemAn AV Now exclusive! Combining the proven waterproof E-mic fitness headset microphone with the best...
View full detailsThe Sennheiser EW-D Wireless System with EMic Fitness Headset Microphone — Professional Wireless Microphone System for Fitness Instructors. Deliver...
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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.
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