Shure BLX14/P31-J11

Overview

The Shure BLX14/P31-J11 is a wireless cardioid headset microphone system designed to deliver clear, hands-free audio for spoken word and vocal performances. Operating in the J11 frequency band (596 to 616 MHz), it offers 123 selectable UHF frequencies to minimize interference and maintain a stable connection. The system includes a PGA31 cardioid condenser headset microphone, a BLX1 bodypack transmitter, and a BLX4 tabletop receiver, providing up to 14 hours of battery life and a line-of-sight range of 300 feet for reliable mobility during presentations, fitness classes, or stage performances.

Key features

• Cardioid condenser microphone captures clear vocals while reducing background noise for improved speech intelligibility.
• QuickScan technology automatically finds the clearest frequency, simplifying setup and reducing signal interruptions.
• Internal antenna diversity in the receiver enhances signal stability and reduces dropouts during movement.
• Adjustable gain control on the bodypack transmitter allows precise audio level tuning to match different environments.
• Wireless operation with up to 14 hours of battery life supports long events without frequent battery changes.
• Versatile audio outputs including XLR and 1/4" connectors enable easy integration with various sound systems.
• Lightweight headset design with an adjustable gooseneck ensures comfortable wear and optimal microphone positioning.

Key specs

• Frequency range: 596 to 616 MHz (J11 band)
• Selectable frequencies: 123 UHF channels
• Microphone type: Cardioid condenser headset (PGA31)
• Maximum sound pressure level: 145 dB SPL
• Operating range: Up to 300 feet line-of-sight
• Battery type: Two AA batteries
• Battery life: Up to 14 hours continuous use
• Receiver outputs: XLR and 1/4" audio connectors

Connectivity and compatibility

The BLX4 tabletop receiver offers both XLR and 1/4" audio outputs, making it compatible with a wide range of professional and consumer sound systems. This flexibility allows easy connection to mixers, amplifiers, and PA systems commonly found in conference rooms, classrooms, and performance venues. The system’s UHF frequency range and QuickScan feature help avoid interference from other wireless devices, ensuring consistent audio quality in busy RF environments.

Ideal uses and environments

This wireless headset microphone system is well suited to users who need hands-free vocal amplification with freedom of movement. It works well for presenters, fitness instructors, performers, and educators who require clear voice reproduction without being tethered to a microphone stand. The system’s robust range and interference avoidance make it a strong choice for medium-sized rooms, houses of worship, fitness studios, and small to medium performance stages where reliable wireless audio is essential.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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