Professional wireless audio has never been more accessible than with the BLX14/P31 Headworn Wireless System, operating on the reliable M17 frequency band. This complete package from Shure’s BLX® Wireless Systems family combines legendary audio performance with straightforward setup and intuitive operation. The system includes everything needed for professional applications: BLX4 wireless receiver, BLX1 bodypack transmitter, PGA31 headset microphone, power supply, clothing clip, windscreens, and comprehensive user guide.
The robust BLX4 receiver features microprocessor-controlled internal antenna diversity alongside simple controls that make operation effortless. Its One-touch QuickScan frequency selection automatically locates the clearest available frequency when interference occurs, while dual XLR and ¼” output connectors provide flexible connectivity options. The lightweight BLX1 bodypack transmitter offers adjustable gain control and impressive battery life, running up to 14 hours continuously on just 2 AA batteries.
At the heart of this system sits the PGA31 cardioid condenser headset microphone, specifically designed for speech and live vocal applications. The wireframe headset provides secure, comfortable positioning for active performers, while its unidirectional cardioid polar pattern rejects off-axis noise for superior sound quality and higher gain-before-feedback. The flexible gooseneck design allows precise microphone positioning, and the permanently charged electret condenser cartridge captures detailed, crisp vocals with the included windscreen controlling plosives for clean sound reproduction.



