The BLX14/P31-H9 Headset Wireless Microphone System is set to Shure's H9 frequency band and operates between 512 - 542 MHz.

It includes a BLX4 single-channel wireless receiver, a BLX1 bodypack transmitter, and a PGA31 headset mic. The system is set to Shure's H9 frequency band and operates between 512 - 542 MHz.

The BLX1 bodypack transmitter has a 300' line of sight operation range with the BLX4 receiver. It is powered by two included AA batteries that can provide up to 14 hours of operation. The BLX4 receiver features microprocessor-controlled internal antenna diversity that helps prevent interference and signal dropouts. Its one-touch QuickScan feature detects the most interference-free frequency and sets the channel to it for fast setup.

PGA31 Performance Headset Condenser Microphone:
The PGA31 Performance Headset Condenser Microphone from Shure is a wireframe headset cardioid condenser microphone that can be used for a variety of vocal, general speech, and performance applications. A windscreen is included.
- Wearable wireframe headset for multi-instrumentalists and active performers
- Permanently charged electret condenser element for detailed vocals
- Flexible gooseneck design and discrete adjustment options optimize microphone positioning for further source isolation
- TA4F (TQG) connector seamlessly integrates with existing Shure bodypack systems
- Tailored frequency response primed for great sound on vocals