Shure Wireless BLX14E SM31 Fitness Headset System
BLX14E/SM31-M17
Wireless Fitness Headset System with SM31FH Headset Microphone
The SM31FH cardioid condenser microphone with rack-mount analogue transmission, designed for fitness instructors, features moisture-repelling construction for true performance in humid applications where corrosion damage is common.
Beltpack requires 2x AA Batteries (Not Supplied)