Shure BLX14/PGA31 Wireless Cardioid Headset Microphone System (J11: 596 to 616 MHz)

The Shure BLX14/P31-J11 is a wireless cardioid headset microphone system designed to provide clear, hands-free audio for a variety of spoken or vocal applications. It includes a PGA31 headset microphone with an adjustable gooseneck, a BLX1 bodypack transmitter, and a BLX4 tabletop receiver with internal antennas. This setup allows users to move freely while maintaining consistent sound quality, making it ideal for presenters, fitness instructors, performers, or anyone who needs reliable wireless audio without being tethered to a microphone stand.

Operating in the J11 frequency band (596 to 616 MHz), the system offers 123 selectable UHF frequencies, which helps avoid interference and ensures a stable connection. The receiver features QuickScan technology to automatically find the clearest frequency available, simplifying setup and reducing interruptions during use. With a line-of-sight range of up to 300 feet, the system supports mobility across large rooms or stages.

The PGA31 headset microphone is cardioid condenser type, designed to capture clear vocals while minimizing background noise, and it can handle sound pressure levels up to 145 dB, making it suitable for both speech and more dynamic vocal performances. The bodypack transmitter runs on two AA batteries, providing up to 14 hours of continuous operation, which is convenient for long events or rehearsals without frequent battery changes. Audio output options include both XLR and 1/4" connectors on the receiver, allowing easy integration with a wide range of sound systems.

Overall, the Shure BLX14/P31-J11 is a dependable wireless microphone system that balances ease of use, sound quality, and flexibility. It fits naturally in environments like conference rooms, classrooms, houses of worship, fitness studios, and small to medium-sized performance venues where hands-free, wireless vocal amplification is needed.

Highlights:

• 123 selectable UHF frequencies in J11 band (596–616 MHz)
• Cardioid condenser headset microphone with 145 dB SPL maximum
• Up to 14 hours of battery life using two AA batteries
• 300 feet line-of-sight operating range for extended mobility
• QuickScan frequency selection with internal antenna diversity for interference avoidance
• 1/4" and XLR audio outputs on the tabletop receiver for versatile connectivity
• Manual sync and adjustable gain control on the bodypack transmitter