The BLX14/SM31 Headworn Wireless System is part of the BLX wireless systems family.
Shure BLX Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it's the most accessible way to own the stage.
BLX1 Bodypack Transmitter
Up to 14 hours of continuous use with 2 AA batteries. 300 ft (100 m) transmission radius
BLX4 Single Channel Receiver
Single channel wireless receiver with microprocessor-controlled internal antenna diversity.
SM31FH Fitness Headset Condenser Microphone
Cardioid condenser headset microphone for wireless systems features hydrophobic construction that repels moisture. For use in fitness instruction.
FCC Consumer Alert (U.S.)
Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change.