Shure BLX14/SM31 Wireless Cardioid Fitness Headset Microphone System

The Shure BLX14/SM31-H9 is a wireless cardioid fitness headset microphone system designed to deliver clear, reliable audio for fitness instructors, active performers, and presenters who need hands-free communication during movement. It combines the BLX4 single-channel receiver with the SM31FH cardioid headset microphone, which is built to stay securely in place even during intense workouts or performances.

This system is made to withstand demanding environments thanks to its moisture-repellent design, making it ideal for sweaty fitness classes or outdoor events. With a wireless range of up to 300 feet, users have the freedom to move around large spaces without worrying about losing connection. The battery life lasts up to 14 hours, so it can easily handle long sessions without interruption.

Setting up the system is straightforward with QuickScan technology, which automatically finds the clearest frequency to avoid interference. This feature supports up to 12 channels operating simultaneously within the same frequency band, making it suitable for group classes or multi-presenter events. The BLX14/SM31-H9 offers a professional, hassle-free wireless audio solution for anyone who needs dependable sound and freedom of movement.

Highlights:

• 300-foot operating range
• 14-hour battery life
• QuickScan frequency selection for easy setup
• Cardioid headset microphone designed with moisture protection
• Supports up to 12 channels per frequency band for multiple users
• Includes BLX4 receiver, BLX1 bodypack transmitter, and SM31FH headset microphone