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 details4.79 / 5.0
39 Reviews
The Samson AirLine 99m AH9 with Fitness Headset Microphone is an excellent choice for fitness instructors leading group fitness classes, dance sess...
View full details4.5 / 5.0
2 Reviews
The Shure GLXD14+ Digital Wireless Microphone System with the EMic Fitness Headset Microphone is the ultimate solution for group fitness instructor...
View full detailsEnhance your fitness classes with the Shure GLXD14+ Wireless Microphone System! Perfect for group fitness, yoga, dance, and more, this system deliv...
View full details4.89 / 5.0
9 Reviews
The Shure BLX Series UHF Wireless Microphone System includes the SM31-FH Fitness Headset Microphone and the Shure BLX14 Receiver and the BLX1 bodyp...
View full detailsNO BELT PACK. FITNESS-RATED DURABILITY. Built for cycling instructors (up to 7 fitness classes per day) with a single SEALED power switch, coated c...
View full details5.0 / 5.0
8 Reviews
The Galaxy Audio EVO-E is a water-resistant wireless headset microphone system with a pocket-sized receiver, perfect for fitness instructors who ne...
View full details4.87 / 5.0
31 Reviews
The AirLine 77 is the right Microphone for Fitness Instructors who want their own system!The AH7 Headset Transmitter is mounted to a lightweight, a...
View full details4.79 / 5.0
52 Reviews
Easy to Charge, Easy to Use, Wireless, Water Resistant & The Smallest Ever.The Samson AirLine Wireless Microphone System combines the most adva...
View full detailsThe Samson AirLine ESm Micro Earset Wireless System offers a hands-free, wireless audio solution ideal for fitness instructors. Its innovative desi...
View full detailsNO BELT PACK. FITNESS-RATED DURABILITY. Ever wanted the EMic Mini-TX with a longer mic boom that extends out towards your mouth? This version feat...
View full details4.75 / 5.0
4 Reviews
NO BELT PACK. FITNESS-RATED DURABILITY. Built for fitness (up to 7 fitness classes per day) with a single SEALED power switch, coated circuit board...
View full detailsThe Fitness Audio U-Series with Aeromic Fitness Headset Microphone is a 16-channel UHF system with NO antenna wire on the body pack! This high-perf...
View full detailsBuilt for the Heat: The Fitness Audio U-Series with CycleMic Headset is designed for Hot Yoga. Designed specifically for high-sweat environments li...
View full detailsEver wanted a system that allows instructors to choose between a bodypack microphone or a fully-wireless headset? We have finally created a system ...
View full detailsThe Shure GLXD14+ Digital Wireless Microphone System with Aeromic Fitness Headset is a state-of-the-art, reliable system for fitness instructors wh...
View full detailsThis Shure BLX Wireless System with E-mic Fitness Headset Microphone is designed to meet the needs of traveling fitness instructors, educators, per...
View full detailsThe Shure BLX Series UHF Wireless Microphone System with the AeroMic Fitness Headset Microphone. This Shure wireless mic system is designed to meet...
View full detailsFitness instructors, experience the revolutionary freedom of Shure's GLXD14R+ Rackmount Wireless Microphone System with E-Mic Headset. Boasting an ...
View full detailsShure BLX14R Rackmount Wireless Microphone System with SM31FH Headset combines superior Shure quality and stage-proven endurance with advanced feat...
View full detailsExperience the incredible benefits of this AV Now exclusive bundle, perfect for cycling studio instructors! The Shure BLX14R Rackmount Wireless Mic...
View full details5.0 / 5.0
1 Review
The Samson Airline 77 Recharge Microphone System delivers professional wireless performance for fitness instructors. This comprehensive package inc...
View full details4.67 / 5.0
6 Reviews
Double the Cable-Less Freedom! AV Now has created an exclusive upgraded bundle. The Samson Airline 77 Wireless Microphone Heavy-Use Bundle - SW7A7S...
View full detailsShure QLXD14 Combo System with QLXD1 Bodypack and QLXD4 Receiver in Channel G50 or H50 or let AV Now choose the frequency for you. It also includes...
View full detailsFitness professionals, unlock total freedom with the Shure GLXD14R+ Rackmount Wireless Microphone System with SM31 Headset Microphone. Designed for...
View full detailsNO BELT PACK. FITNESS RATED DURABILITY.The Fitness Audio Mini-TX E-mic System Heavy-Use Bundle Microphone System is a two headset bundle that is bu...
View full detailsGet special bundle pricing on this combination of the most sweat-resistant UHF transmitter you'll ever find coupled with our best-selling fitness-...
View full detailsNO BELT PACK. FITNESS-RATED DURABILITY. Choose from two Aeromic or two Cyclemic Fitness Microphones in this Fitness Audio UHF Mini-TX Bundle that i...
View full detailsTeaching OVER 40 Studio Cycling Fitness Classes per week? Double Up! 16 channel UHF Body Pack System with two Cyclemic Fitness Headset Microphones....
View full detailsTransform your group fitness studio with Shure's Dual BLX Wireless Microphone System! Designed for group fitness, dance, yoga, and other fitness cl...
View full detailsShure's multi-channel UHF Body Pack System with two SM31FH headset fitness microphones top features include an extended range and long battery life...
View full detailsTeaching more than fourteen Group Exercise Fitness Classes per week? Double Up with the Fitness Audio UHF Base System with 2 Aeromic Headset Microp...
View full detailsShure Heavy-Use UHF Body Pack System with TWO E-mic Fitness Headset Microphones. With extended range and long battery life, plus easy setup and ope...
View full detailsThe Galaxy Audio EVO-E is a water-resistant wireless headset microphone system with a pocket-sized receiver, perfect for fitness instructors who ne...
View full details5.0 / 5.0
1 Review
The Samson Concert 88 Wireless System with QE Headset Microphone provides a high-quality, frequency-agile solution for users who need reliable, cle...
View full details5.0 / 5.0
1 Review
The Samson Concert 88 System with E-mic Fitness Headset Microphone provides a high-performance UHF wireless solution, designed specifically for gro...
View full detailsBuilt for high-energy, high-demand environments, the Shure GLXD14+/SM31-HEAVY digital wireless system is the ultimate audio solution for fitness in...
View full detailsThe Shure GLX-D + Wireless Microphone System Heavy Use Bundle with (2) E-mic Fitness Headset Microphones and (2) Transmitters is the perfect soluti...
View full detailsThe Heavy Use Shure GLXD14+ Digital Wireless Microphone System includes two Aeromic Fitness Headset Microphones and two GLXD1 Shure Bodypack Trans...
View full detailsThe Shure GLXD14+ Digital Wireless Microphone System with Cyclemic Fitness Headset is a state-of-the-art, reliable system for fitness instructors w...
View full detailsAre you looking for a mic system that can beat the heat? Look no further than the Shure GLXD14+ Heavy Use Digital Wireless Microphone System with 2...
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 detailsTake your group exercise or cycling classes to the next level with the Samson Concert 88 Wireless Microphone System. This exclusive AV Now bundle i...
View full detailsTake your fitness instruction to the next level with the Shure BLX14R Rack Mountable Receiver and E-mic Fitness Headset Microphone! Perfect for gro...
View full detailsThe Shure BLX Series UHF Wireless Microphone System with the Cyclemic Cycling Fitness Headset Microphone. This Shure wireless mic system is designe...
View full detailsRack-mountable Samson AirLine 99 Wireless Fitness Headset System with Qe Fitness Microphone (AH9-Qe/CR99) Built For FitnessThe Samson Airline 99 is...
View full detailsEnjoy dependable wireless performance with the Shure BLX14R Rackmount Wireless Microphone System and Aeromic Fitness Headset Microphone, designed f...
View full details
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.
Visit Us at The HFA Show 2026 | San Diego
We’re excited to invite you to The HFA Show 2026, taking place March 16–18 in beautiful San Diego, California. Join us at Booth 610 to connect with our team and explore how our innovative AV solutions are designed to elevate health and fitness environments.
{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}