Shure BLX14/PGA31 Wireless Cardioid Headset Microphone System (H9: 512 to 542 MHz)

The Shure BLX14/P31-H9 is a wireless headset microphone system that lets you move freely on stage or in the classroom while keeping your voice clear and consistent. It combines the PGA31 condenser headset mic, a BLX1 bodypack transmitter, and a BLX4 tabletop receiver that operates in the H9 UHF band from 512 to 542 MHz.

The PGA31 headset features a cardioid pickup pattern that focuses on your voice and reduces ambient sound. The mic is lightweight, and a flexible gooseneck helps you place the capsule exactly where you want it. This is a smart choice for fitness instructors who lead energetic classes, presenters who need both hands free, and singers who want stable microphone placement through an entire set.

Setting up the wireless link is straightforward. Pressing QuickScan on the receiver automatically selects the clearest channel from 123 options, so you start working in seconds with less chance of interference. Once the connection is established, the system maintains a solid signal at distances up to 300 feet line-of-sight, giving you room to roam across large stages or halls.

The BLX1 bodypack runs for as long as 14 hours on two standard AA batteries, making it ready for full-day conferences or multiple back-to-back performances. The receiver provides audio outputs that include a balanced XLR connector and an unbalanced 1/4 inch jack, allowing quick integration with mixers, powered speakers, or recording interfaces. If your event calls for more microphones, you can operate up to 12 BLX systems in the same frequency band without conflicts.

Whether you are managing corporate meetings, leading worship, or teaching a high-energy spin class, the BLX14/P31-H9 offers dependable wireless performance, straightforward setup, and a comfortable headset that keeps your message front and center.

• PGA31 headset microphone that uses a cardioid condenser element and rejects background noise
• QuickScan automatically finds a clear frequency among 123 UHF channels in the H9 band (512 to 542 MHz)
• BLX1 transmitter delivers up to 14 hours of operation from two AA batteries
• Reliable wireless range up to 300 feet line-of-sight
• BLX4 receiver with internal antennas, balanced XLR output, and unbalanced 1/4 inch output
• Supports as many as 12 compatible systems in the same frequency band