Amazon.com: Shure SM31 Fitness Headset Condenser Microphone with Moisture-Repelling Hydrophobic Construction for Workout Instructors, TQG Connects to Wireless Systems (Bodypack Transmitter Sold Separately) : Musical Instruments
SM31 FH- Shure Fitness Headset - can be adapted to other brands – bodymics
Shure BLX14/SM31 SM31 Wireless Fitness Headset Microphone System, Band H10 (542-572 MHz) | DJ Audio | Chicago DJ Equipment | 123DJ
Shure SM31FH Fitness Headset Condenser Microphone Product Video - YouTube
Shure BLX14/SM31 Wireless Mic System with SM31FH Fitness Headset Microphone (BLX14/SM31-H9) | Alto Music
Shure SM31-FH Fitness Headset Microphone — AV Now Fitness Sound