The Shure BLX14/SM31 Wireless Fitness Headset System is designed for fitness instructors, presenters, and performers who demand professional-quality sound and total freedom of movement. Featuring the SM31FH cardioid condenser fitness headset microphone with moisture-repellent construction, it withstands high-humidity environments such as gyms, fitness classes, and outdoor training. Paired with the BLX1 bodypack transmitter and BLX4 single-channel receiver, this system delivers legendary Shure sound with up to 14 hours of battery life and a range of up to 300 feet (100m). Easy setup, reliable RF performance, and rugged construction make the BLX14/SM31 the perfect wireless headset solution for active professionals.
Includes SM31FH cardioid condenser fitness headset mic with moisture-repellent design
BLX1 bodypack transmitter with clothing clip for secure fit
BLX4 tabletop single-channel receiver with easy one-touch QuickScan setup
Transparent Shure audio for fitness instruction, presentations, and performances
14 hours of continuous operation with 2 × AA batteries
Operating range up to 300 ft (100m) for maximum mobility
Rugged, sweat-resistant headset ideal for high-humidity environments
Expandable up to 12 compatible systems per frequency band* (region dependent)
Ships with windscreens, clothing clip, PS24 power supply, carrying case, and user guide
System Type: Wireless fitness headset microphone system
Receiver: BLX4 single-channel diversity tabletop receiver
Transmitter: BLX1 bodypack transmitter
Microphone: SM31FH cardioid condenser fitness headset
Frequency Response: 45 Hz – 20 kHz
Polar Pattern: Cardioid
Operating Range: Up to 100 m (300 ft)
Battery Life: Up to 14 hours (2 × AA batteries)
Simultaneous Systems: Up to 12 per frequency band (region dependent)
Accessories Included: Windscreen, clothing clip, PS24 power supply, carrying case, user guide
