Wireless Headworn Mic System BLX1 SM31FH Mic BLX4 Rx Auto Setup 662-686MHz

in the M17 Frequency Band (662-686MHz)

SKU: SHR-BLX14S31M17

$729.00
RRP $839.00
SAVE $110.00
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Wireless Headworn Mic System BLX1 SM31FH Mic BLX4 Rx Auto Setup 662-686MHz

BLX14/SM31-H10 Fitness Headset Wireless System combines Shure's easy-to-use BLX wireless system with the rugged SM31 headset microphone - it's water-repellent and built to last in the fitness studio.

It includes a BLX4 single-channel wireless receiver, a BLX1 bodypack transmitter, and a SM31FH fitness headset mic. The system is set to Shure's H10 frequency band and operates between 542 - 572 MHz.

The BXL1 bodypack transmitter has a 300' line of sight operation range with the BLX4 receiver. It is powered by two included AA batteries that can provide up to 14 hours of operation. The BLX4 receiver features microprocessor-controlled internal antenna diversity that helps prevent interference and signal dropouts. Its one-touch QuickScan feature detects the most interference-free frequency and sets the channel to it for fast setup.

SM31FH Fitness Headset Condenser Microphone:
The SM31FH Fitness Headset Condenser Microphone from Shure is a cardioid condenser headset microphone designed to be used by fitness and aerobics instructors. It has integrated moisture-repelling hydrophobic fabric that helps protect the microphone capsule from sweat and humidity. A windscreen is included.

  • Wearable wireframe headset designed for a secure, comfortable fit made for fitness and aerobics instructors
  • Integrated moisture-repelling hydrophobic fabric protects the microphone element from harmful corrosion for use in humid environments
  • Flexible gooseneck design provides discrete adjustment options to optimize placement for greatest isolation
  • Compatible with Shure wireless bodypack systems for direct replacement of TA4F-connected microphones
  • Lightweight and low-profile form factors help avoid fatigue during high-impact use
  • Tailored frequency response refined for crisp and clear vocal reproduction

SM31FH Fitness Headset Condenser Microphone Specifications:
- Type: Electret Condenser
- Frequency Response: 45 to 20,000 Hz
- Polar Pattern: Unidirectional (Cardioid)
- Output Impedance: @ 1 kHz 600 O
- Audio Output Level: -50 dBV/Pa
- Signal-To-Noise Ratio: @ 1 kHz 66 dB
- Maximum SPL: 1000 O load, @ 3% THD 145.0 dB
- Dynamic Range: @ 1 kHz, 1000 O load 117.0 dB
- Equivalent Output Noise: Typical, A-Weighted 28 dB
- Power Requirements: +5 V DC (nominal), 10 V maximum (DC bias)
- Cable: 1.1 m (45 in.)
- Connector: TA4F
- Net Weight: 60 g (2.11 oz.)
- Included: BLX4 wireless receiver; BLX1 bodypack transmitter; SM31FH Fitness Headset Condenser Microphone with windscreen and cable clip

BLX4 Single-Channel Wireless Receiver (H10: 542 - 572 MHz):
The BLX4 Wireless Receiver from Shure is a single-channel receiver set to Shure's H10 frequency band and operates between 542 to 572 MHz. It has microprocessor-controlled internal antenna diversity for reduced signal interference and dropouts. The one-touch QuickScan frequency selection feature allows you to quickly locate the frequency with the least amount of interference available.


Its front-panel dual-color LED status indicator displays green for normal levels and red when clipping for fast metering. It has an XLR output in additional to an instrument level ¼" output. The BLX4 can be used with up to 11 other compatible systems simultaneously per frequency band.

BLX1 Bodypack Transmitter (H10: 542 - 572 MHz):
The BLX1 Bodypack Transmitter from Shure is designed for use with Shure's BLX wireless systems. It is set to the H10 frequency band and operates between 542 and 572 MHz. It has a TQG input and can be used with Shure lavalier, headset, earset and instrument microphones. With the optional WA302 adapter cable, the BLX1 can be used as a transmitter for guitar. The unit has a top panel mounted on/off switch as well as volume control for quick access while speaking or performing. The BLX1 is powered by the two included AA batteries for up to 14 hours.


BLX1 Bodypack Transmitter Specifications:
- BLX1 Bodypack Transmitter Audio Input Level gain max: -16 dBV maximum
- BLX1 Bodypack Transmitter Audio Input Level gain min (0 dB) : +10 dBV maximum
- Gain Adjustment Range: 26 dB
- Input Impedance: 1 MO
- RF Transmitter Output: 10 mW, typical varies by region
- Dimensions: 110 x 64 x 21 mm (H x W x D)
- Weight: 75 g (2.6 oz.), without batteries
- Housing: Molded ABS
- Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline
- Battery Life: up to 14 hours (alkaline)

For performers, presenters and instructors who wish to unplug from the wire, BLX Wireless Systems are the clearest choice. Shure delivers wireless confidence with legendary sound from industry-renown microphones, decades of wireless design proficiency and world-class construction.

IMPORTANT - Before you buy, use this tool below to confirm the Product & Frequency are compatible with your requirements.
Use the Shure Frequency Calculator to help you find compatible frequency bands in your region of choice before purchasing a wireless microphone system or moving a wireless system to a new location. This interactive tool will assist you with finding the best frequency and suitable product(s) to use for the location that you are operating within.
Click on the image below.

SKU SHR-BLX14S31M17
Barcode # 042406391580
Brand Shure

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