Shure BLX14/SM31-J11 BLX14 HEADSET SYSTEM W/SM31

The Shure BLX14/SM31‑J11 is a complete wireless headset microphone system designed for fitness instruction, active presenters, and similar vocal applications. It pairs a lightweight and comfortable cardioid headset condenser microphone with a reliable UHF wireless system to provide clear vocal reproduction and freedom of movement. The system includes a single‑channel wireless receiver, a bodypack transmitter, and the SM31FH headset mic, optimized for speech clarity in dynamic and sweaty environments. The headset’s moisture‑repellent construction enhances durability and longevity, while the wireless components provide simple setup, intuitive operation, and dependable performance. The J11 frequency band (596–616 MHz) supports effective analog UHF transmission with up to 12 compatible systems per band and robust interference handling.

Features
System Features
• UHF analog wireless system with internal antenna diversity and microprocessor control for reliable RF performance.
• One‑touch QuickScan frequency selection to find a clean operating frequency.
• Up to 12 compatible systems per frequency band (region dependent).
• Operating range up to approximately 91 m (300 ft) line‑of‑sight.
• 1x XLR balanced and 1x 1/4″ unbalanced audio outputs on the receiver.
• Two‑color audio status LED on receiver to indicate audio levels.
• Includes BLX4 single‑channel tabletop receiver and PS24 power supply.