---
product_id: 20906850
title: "BLX14/SM31 Fitness Headset Audio System H9 Band (512–542 MHz) – BLX4 Receiver, BLX1 Bodypack & SM31FH Headworn Mic, Up to 14 Hr Battery, 300 ft Range"
brand: "shure"
price: "$931.24"
currency: USD
in_stock: true
category: "Shure"
url: https://www.desertcart.us/products/20906850-blx14-sm31-fitness-headset-audio-system-h9-band-512-542
store_origin: US
region: United States of America
---

# UHF 512–542 MHz band 300 ft wireless range 14 hr battery life BLX14/SM31 Fitness Headset Audio System H9 Band (512–542 MHz) – BLX4 Receiver, BLX1 Bodypack & SM31FH Headworn Mic, Up to 14 Hr Battery, 300 ft Range

**Brand:** shure
**Price:** $931.24
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your fitness sessions with wireless freedom and pro-grade clarity!

## Quick Answers

- **What is this?** BLX14/SM31 Fitness Headset Audio System H9 Band (512–542 MHz) – BLX4 Receiver, BLX1 Bodypack & SM31FH Headworn Mic, Up to 14 Hr Battery, 300 ft Range by shure
- **How much does it cost?** $931.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/20906850-blx14-sm31-fitness-headset-audio-system-h9-band-512-542)

## Best For

- shure enthusiasts

## Why This Product

- Trusted shure brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power Through Your Day:** Up to 14 hours of uninterrupted performance on just two AA batteries.
- • **Engineered for Movement:** Moisture-resistant, secure-fit headset mic built for high-energy fitness pros.
- • **Trusted Shure Reliability:** Pro-grade UHF wireless design ensures consistent, interference-free sound.
- • **Unmatched Wireless Freedom:** Enjoy crystal-clear audio up to 300 ft line-of-sight—no strings attached.
- • **Seamless Multi-Device Setup:** Supports up to 12 compatible systems per band for flawless group sessions.

## Overview

The Shure BLX14/SM31 Fitness Headset Audio System operates on the reliable H9 UHF band (512–542 MHz), delivering up to 300 ft wireless range and 14 hours of battery life. Designed for fitness instructors and active presenters, it includes a moisture-resistant headset mic, BLX1 bodypack transmitter, and BLX4 receiver. Supporting up to 12 compatible systems per band, it ensures professional-grade, interference-free audio for dynamic environments.

## Description

The Shure BLX14/SM31 fitness headset system delivers reliable UHF wireless performance for instructors, trainers, and presenters in active environments. Includes BLX4 single-channel receiver, BLX1 bodypack transmitter, and SM31FH fitness headset mic with windscreen and clip for secure, clear voice capture during movement. The bodypack provides up to 14 hours of use on AA batteries, with a wireless range of up to 300 ft (100 m) line-of-sight under typical conditions. Supports up to 12 compatible channels per band for flexible setups, built with Shure’s trusted wireless design for consistent, dependable performance.

## Features

- H9 (512–542 MHz) UHF FREQUENCY BAND: Operates on the H9 (512–542 MHz) UHF frequency band for dependable wireless audio transmission in regions where this spectrum is authorized. Verify local compliance before ordering.
- PROFESSIONAL RANGE & ALL-DAY POWER: Provides reliable audio transmission up to approximately 300 ft (100 m) line-of-sight. The BLX1 bodypack transmitter operates up to 14 hours using two AA batteries under typical conditions.
- COMPLETE FITNESS AUDIO SETUP: Includes BLX4 single-channel receiver, BLX1 bodypack transmitter, and SM31FH fitness headset mic with clothing clip and windscreen. Also includes power supply, 2 AA batteries, and user guide.
- IDEAL FOR FITNESS & ACTIVE PRESENTERS: The SM31FH headworn mic features a secure fit and moisture-resistant construction designed for aerobics instructors, trainers, and high-movement environments.
- SHURE ENGINEERED RELIABILITY: Built with Shure’s trusted UHF wireless design and simple setup, supporting up to 12 compatible systems per band for reliable performance in multi-device setups.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B016APL72S |
| Antenna Location | Singing |
| Best Sellers Rank | #5,289 in Musical Instruments ( See Top 100 in Musical Instruments ) #98 in Handheld Wireless Microphones & Systems #119 in Computer Microphones |
| Brand | Shure |
| Built-In Media | Shure BLX14/SM31 Headset Wireless Microphone System, Includes BLX1 Bodypack Tran |
| Color | Assorted |
| Compatible Devices | Headphone |
| Connectivity Technology | Wireless |
| Connector Type | TA4F |
| Customer Reviews | 4.4 4.4 out of 5 stars (234) |
| EU Spare Part Availability Duration | 2 Years |
| Enclosure Material | Stainless Steel |
| Frequency Range | 2050-2700 MHz |
| Frequency Response | 20 KHz |
| Global Trade Identification Number | 00042406470346 |
| Hardware Platform | Karaoke Machine |
| Impedance | 150 Ohms |
| Item Dimensions | 13.5 x 12 x 4 inches |
| Item Type Name | Instrument Condenser Microphone |
| Item Weight | 2.8 Pounds |
| Manufacturer | Shure |
| Mfr Part Number | BLX14/SM31-H9 |
| Microphone Form Factor | Headset |
| Model Name | BLX14/SM31 Wireless Cardioid Fitness Headset Microphone System |
| Model Number | BLX14/SM31-H9 |
| Number of Batteries | 2 AA batteries required. (included) |
| Number of Channels | 1 |
| Polar Pattern | Unidirectional |
| Power Source | Corded Electric,Battery Powered |
| Signal-to-Noise Ratio | 76 dB |
| Special Feature | Transmitter: Quick and easy receiver frequency matching |
| UPC | 042406470346 |
| Unit Count | 1.0 Count |
| Warranty Description | 2-year limited |

## Product Details

- **Brand:** Shure
- **Color:** Assorted
- **Compatible Devices:** Headphone
- **Connectivity Technology:** Wireless
- **Connector Type:** TA4F
- **Included Components:** Shure BLX14/SM31 Headset Wireless Microphone System, Includes BLX1 Bodypack Tran
- **Model Name:** BLX14/SM31 Wireless Cardioid Fitness Headset Microphone System
- **Polar Pattern:** Unidirectional
- **Recommended Uses For Product:** Singing
- **Special Feature:** Transmitter: Quick and easy receiver frequency matching

## Images

![BLX14/SM31 Fitness Headset Audio System H9 Band (512–542 MHz) – BLX4 Receiver, BLX1 Bodypack & SM31FH Headworn Mic, Up to 14 Hr Battery, 300 ft Range - Image 1](https://m.media-amazon.com/images/I/51b6wzYkMiL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: I wear child-size hats...how adjustable is the mic and does the size mechanism hold up?**
A: I always have a problem with mics falling off, I bobby pin therm, clip them, whatever and they fall off the minute I jump. This one is a lot better. It doesn't adjust really, but it "holds" and if you wear a hat it helps quite a bit. Its probably one of the best I've ever used. I'm a GF director... Been teaching 20+ years.

**Q: Can this sync to a MacBook?**
A: It does not sync to anything.  It is a transmitter and receiver pair.  The receiver plugs into an analog audio input of some kind.  It has 1/4" and XLR outputs.

**Q: Is this system compatible with the shure pga31 mic?**
A: Shouldn't be a problem.If this was helpful, please consider purchasing from us. We can help with support after the sale as well. We have it in stock and ready to ship. - Pixel Pro Audio

**Q: Does this require speakers?**
A: Yes and an amplifier for the speakers, or a Bluetooth amplified speaker is what we use.

## Frequently Bought Together

- Shure BLX14/SM31 Wireless Microphone System for Fitness and Aerobics - 14-Hour Battery Life, 300 ft Range | Includes SM31FH Fitness Headset Mic, Single Channel Receiver | H9 Band (BLX14/SM31-H9)
- Tune Belt Mic Belt - Microphone Holder Pack - The Original Brand - Carrier Pouch Securely Holds and Protects for Fitness Instructors, Theater, Speakers and more
- 15 Pack Foam Microphone Windscreen, Lapel Headset Microphone Sponge Mini Foam Cover Shield Protection for Variety of Headset Microphone(Black)

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**Shop now:** [https://www.desertcart.us/products/20906850-blx14-sm31-fitness-headset-audio-system-h9-band-512-542](https://www.desertcart.us/products/20906850-blx14-sm31-fitness-headset-audio-system-h9-band-512-542)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-05*