--- product_id: 216147182 title: "BLX14/SM31 Fitness Headset Audio System J11 Band (596–620 MHz) – BLX4 Receiver, BLX1 Bodypack & SM31FH Headworn Mic, Up to 14 Hr Battery, 300 ft Range" brand: "shure" price: "590384CFA" currency: XOF in_stock: true reviews_count: 9 category: "Shure" url: https://www.desertcart.sn/products/216147182-blx14-sm31-fitness-headset-audio-system-j11-band-596-620 store_origin: SN region: Senegal --- # moisture-resistant fitness mic 300 ft wireless range 14 hr battery life BLX14/SM31 Fitness Headset Audio System J11 Band (596–620 MHz) – BLX4 Receiver, BLX1 Bodypack & SM31FH Headworn Mic, Up to 14 Hr Battery, 300 ft Range **Brand:** shure **Price:** 590384CFA **Availability:** ✅ In Stock ## Summary > 🎧 Own the room, wire-free and worry-free. ## Quick Answers - **What is this?** BLX14/SM31 Fitness Headset Audio System J11 Band (596–620 MHz) – BLX4 Receiver, BLX1 Bodypack & SM31FH Headworn Mic, Up to 14 Hr Battery, 300 ft Range by shure - **How much does it cost?** 590384CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/216147182-blx14-sm31-fitness-headset-audio-system-j11-band-596-620) ## 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 - • **Plug & Play Simplicity:** Shure’s trusted UHF wireless tech ensures quick setup and rock-solid reliability, so you focus on leading, not troubleshooting. - • **Engineered for Movement:** The SM31FH headset mic’s moisture-resistant design and secure fit keep you sounding flawless, no matter how intense the workout. - • **Unmatched Wireless Freedom:** Seamlessly command your space with a 300 ft line-of-sight range—no strings attached. - • **Endurance for All-Day Hustle:** Keep your voice live and clear for up to 14 hours on just two AA batteries—power through every session. - • **Pro-Grade Multi-Channel Support:** Run up to 12 compatible systems per band without interference—perfect for studios and group classes. ## Overview The Shure BLX14/SM31 Fitness Headset Audio System delivers professional-grade UHF wireless audio with up to 300 ft range and 14 hours of battery life. Designed for fitness instructors and active presenters, it features a moisture-resistant, secure-fit SM31FH headset mic and supports up to 12 compatible systems per band for interference-free multi-user environments. This all-in-one system ensures crystal-clear voice transmission and dependable performance throughout your busiest days. ## 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. Review: Schure is the goat for mics - If you want the best, look no further. This is as good as it gets. We use them for a dance studio for the dance instructors to teach classes of 100+ people. Doesn't catch feedback like our Pheonix mics did. We got the fitness version, it is perfect. Review: First mic, great mic - Great mic! ## Features - J11 (596–620 MHz) UHF FREQUENCY BAND: Operates on the J11 (596–620 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 | B085WGPDCY | | Antenna Location | Speech | | Best Sellers Rank | #3,655 in Musical Instruments ( See Top 100 in Musical Instruments ) #68 in Handheld Wireless Microphones & Systems | | Brand | Shure | | Built-In Media | BLX1 Bodypack Transmitter, BLX2 Handheld Transmitter (choice of SM58, BETA58A, or PG58), BLX4 Wireless Receiver, BLX88 Dual Wireless Receiver, Guitar cable (WA302), Headworn microphone (choice of PG30, SM31FH or SM35), Instrument microphone (BETA98H/C), Lavalier microphone (choice of PG185, WL185 or WL93), MX153 Earset microphone, PS24 Power Supply | | Compatible Devices | Headphone | | Connectivity Technology | XLR | | Connector Type | XLR | | Customer Reviews | 4.5 out of 5 stars 138 Reviews | | Enclosure Material | Metal | | Frequency Response | 20 KHz | | Item Dimensions | 13.5 x 12 x 4 inches | | Item Type Name | Wireless Microphone System | | Item Weight | 2.8 pounds | | Manufacturer | Shure | | Mfr Part Number | BLX14/SM31-J11 | | Microphone Form Factor | Microphone System | | Model Name | BLX14/SM31 | | Model Number | BLX14/SM31-J11 | | Number of Batteries | 2 AA batteries required. (included) | | Number of Channels | 1 | | Number of Items | 1 | | Polar Pattern | Unidirectional | | Power Source | Corded Electric,Battery Powered | | Recommended Uses For Product | Speech | | Signal-to-Noise Ratio | 65 db | | Special Feature | Clip | | UPC | 042406555340 | | Unit Count | 1 Count | | Warranty Description | 2 Year Manufacturer | ## Product Details - **Brand:** Shure - **Compatible Devices:** Headphone - **Connectivity Technology:** XLR - **Connector Type:** XLR - **Item Weight:** 2.8 pounds - **Model Name:** BLX14/SM31 - **Polar Pattern:** Unidirectional - **Recommended Uses For Product:** Speech - **Special Feature:** Clip ## Images ![BLX14/SM31 Fitness Headset Audio System J11 Band (596–620 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Schure is the goat for mics *by T***F on July 10, 2026* If you want the best, look no further. This is as good as it gets. We use them for a dance studio for the dance instructors to teach classes of 100+ people. Doesn't catch feedback like our Pheonix mics did. We got the fitness version, it is perfect. ### ⭐⭐⭐⭐⭐ First mic, great mic *by J***. on July 4, 2026* Great mic! ### ⭐⭐⭐⭐⭐ Reliable product. *by B***Y on May 28, 2026* Bought for Public Speaking , great sound quality. Versatile, ## 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 | J11 Band (BLX14/SM31-J11) - 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) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/216147182-blx14-sm31-fitness-headset-audio-system-j11-band-596-620](https://www.desertcart.sn/products/216147182-blx14-sm31-fitness-headset-audio-system-j11-band-596-620) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-08-23*