{"product_id":"shure-blx14-sm31-wireless-fitness-headset-system-h9-band","title":"Shure BLX14\/SM31 Wireless Fitness Headset System - H9 Band","description":"\u003c!-- more --\u003e\n\u003c!-- split --\u003e\u003cp\u003e\n\u003c\/p\u003e\u003cdiv class=\"video-wrap\"\u003e\n\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/mnNM1npG_EM?status=ok\u0026amp;rel=0\" frameborder=\"0\" listtype=\"playlist\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\u003ch4\u003eCut through the Noise with the Shure BLX14\/SM31 Wireless Fitness Headset System - H9 Band\u003c\/h4\u003e\n\n\u003cp\u003eFrequency Band: H9 (512 - 542 MHz)\u003c\/p\u003e\n\n\u003cp\u003eThe BLX14\/SM31 Headworn Wireless System is part of the BLX wireless systems family. Shure BLX Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it's the most accessible way to own the stage. Includes BLX4 wireless receiver, BLX1 bodypack transmitter, SM31 fitness headset microphone, power supply, clothing clip, windscreens, and user guide.\u003c\/p\u003e\n\n\u003cp\u003eThe rugged and durable SM31FH is a cardioid condenser microphone constructed with hydrophobic materials that make it ideal for true performance in fitness instruction applications. The moisture-repellent cartridge housing ensures a long product life by protecting the microphone from the corrosion damage that causes typical fitness instruction headsets to fail.\u003c\/p\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eBLX1 Bodypack\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eQuick and easy receiver frequency matching\u003c\/li\u003e\n\u003cli\u003eTQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cables\u003c\/li\u003e\n\u003cli\u003eEasily accessible On\/Off switch\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eBLX4 Single Channel Receiver\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eXLR and 1\/4-inch output connectors\u003c\/li\u003e\n\u003cli\u003eTwo-color audio status indicator LED\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eGreen: Normal audio levels\u003c\/li\u003e\n\u003cli\u003eRed: Excessive audio levels (overload\/clipping)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eSM13FH Fitness Condenser Microphone\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWireframe headset fits securely and comfortably for fitness and aerobics instructors\u003c\/li\u003e\n\u003cli\u003eMoisture-repellent hydrophobic fabric protects the microphone cartridge from harmful corrosion that occurs in humid environments\u003c\/li\u003e\n\u003cli\u003eFlexible gooseneck provides discrete adjustment capabilities to optimize placement for greatest isolation\u003c\/li\u003e\n\u003cli\u003eLightweight and low-profile design won't fatigue instructors during high-impact use\u003c\/li\u003e\n\u003cli\u003eTA4F (TQG) connector is compatible with any Shure wireless bodypack\u003c\/li\u003e\n\u003cli\u003eIncluded windscreen tames plosive, breath, and wind noise for clean and intelligible sound\u003c\/li\u003e\n\u003cli\u003eTailored frequency response ideal for crisp, clear vocal reproduction\u003c\/li\u003e\n\u003cli\u003eAvailable with bundled BLX and GLX-D wireless systems\u003c\/li\u003e\n\u003cli\u003eLegendary Shure precision engineering for durability and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003ch4\u003eSPECIFICATIONS\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eBLX1 Bodypack\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGain Max: -16 dBV maximum\u003c\/li\u003e\n\u003cli\u003eGain Min (0 dB): +10 dBV maximum\u003c\/li\u003e\n\u003cli\u003eGain Adjustment Range: 26 dB\u003c\/li\u003e\n\u003cli\u003eInput Impedance: 1 M\u003c\/li\u003e\n\u003cli\u003eRF Transmitter Output: 10 mW, typical, varies by region\u003c\/li\u003e\n\u003cli\u003eDimensions (H x W x D): 110 mm X 64 mm X 21 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 75 g (2.6 oz.), without batteries\u003c\/li\u003e\n\u003cli\u003eHousing: Molded ABS\u003c\/li\u003e\n\u003cli\u003ePower Requirements: 2 LR6 AA batteries, 1.5 V, alkaline\u003c\/li\u003e\n\u003cli\u003eBattery Life: up to 14 hours (alkaline)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eBLX4 Single Channel Receiver\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOutput Impedance: XLR connector: 200 ohms, 6.35 mm (1\/4\") connector: 50 ohms\u003c\/li\u003e\n\u003cli\u003eAudio Output Level: Ref. ±33 kHz deviation with 1 kHz tone\u003c\/li\u003e\n\u003cli\u003eXLR connector: -27 dBV (into 100 ohms load)\u003c\/li\u003e\n\u003cli\u003e6.35 mm (1\/4\") connector: -13 dBV (into 100 ohms load)\u003c\/li\u003e\n\u003cli\u003eRF Sensitivity: -105 dBm for 12 dB SINAD, typical\u003c\/li\u003e\n\u003cli\u003eImage Rejection: greater than 50 dB, typical\u003c\/li\u003e\n\u003cli\u003eDimensions(H x W x D): 40 mm X 188 mm X 103 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 241 g (8.5 oz.)\u003c\/li\u003e\n\u003cli\u003eHousing: Molded ABS\u003c\/li\u003e\n\u003cli\u003ePower Requirements: 12-15 V DC @ 160 mA (BLX88, 320 mA), supplied by external power supply (tip positive)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eSM13FH Fitness Condenser Microphone\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Electret Condenser\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 45 to 20,000 Hz\u003c\/li\u003e\n\u003cli\u003ePolar Pattern: Unidirectional (Cardioid)\u003c\/li\u003e\n\u003cli\u003eOutput Impedance @ 1 kHz: 600 ohms\u003c\/li\u003e\n\u003cli\u003eAudio Output: Level -50 dBV\/Pa\u003c\/li\u003e\n\u003cli\u003eSignal-To-Noise Ratio @ 1 kHz: 66 dB\u003c\/li\u003e\n\u003cli\u003eMaximum SPL 1000 ohms load, @ 3% THD: 145.0 dB\u003c\/li\u003e\n\u003cli\u003eDynamic Range @ 1 kHz, 1000 ohms load: 117.0 dB\u003c\/li\u003e\n\u003cli\u003eEquivalent Output Noise, Typical, A-Weighted: 28 dB\u003c\/li\u003e\n\u003cli\u003ePower Requirements: +5 V DC (nominal), 10 V maximum (DC bias)\u003c\/li\u003e\n\u003cli\u003ePolarity: Positive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1\u003c\/li\u003e\n\u003cli\u003eCable: 1.1 m (45 in.)\u003c\/li\u003e\n\u003cli\u003eConnector: TA4F\u003c\/li\u003e\n\u003cli\u003eNet Weight: 60 g (2.11 oz.)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\n\n\nManufacturer: Shure\u003cbr\u003eModel: BLX14\/SM31-H9\u003cbr\u003eSKU: I387095-N-6-WHXA\u003cbr\u003eUPC: 042406470346\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eWe are Chuck Levin's Washington Music Center\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eSince 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.\u003c\/p\u003e\u003cp\u003eOur team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.\u003c\/p\u003e\u003cp\u003eChuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Shure","offers":[{"title":"Default Title","offer_id":40443525824575,"sku":"I387095-N","price":429.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/0972\/9087\/files\/4c85b191-37e2-466f-8917-6c8a4750b4db.png?v=1736711611","url":"https:\/\/chucklevins.com\/products\/shure-blx14-sm31-wireless-fitness-headset-system-h9-band","provider":"Chuck Levin's Washington Music Center","version":"1.0","type":"link"}