The SM31FH cardioid condenser microphone with analogue transmission, designed for use in fitness instruction, features moisture-repelling construction for true performance in humid applications where corrosion damage is common.

Main Features

Main Features

  • Available Transmitter Form factors: Bodypack
  • Operating range (up to): 100 m (Under typical conditions)

BLX4 Wireless Receiver for BLX Wireless System

  • Up to 12 compatible systems (region dependent)
  • Microprocessor-controlled internal antenna diversity
  • One touch QuickScan locates the best open frequency
  • ¼" and XLR audio outputs
  • Two color audio status indicator LED
    • Green: Normal audio levels
    • Red: Excessive audio levels (overload/clipping)

BLX1 Wireless Bodypack Transmitter

  • Power and battery status LED
  • Adjustable gain control
  • Quick and easy frequency matching
  • AA batteries (included) provide up to 14 hours of continuous use
  • 100 m (300 ft.) operating range (line of sight)

SM31FH – Fitness Headset Condenser Microphone

  • Wearable wireframe headset with 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 provides discrete adjustment options to optimize placement for greatest isolation
  • Lightweight and low-profile form factors stave off fatigue during high-impact use
  • Compatible with Shure wireless bodypack systems for direct replacement of TA4F-connected microphones
  • Available with a wide range of Shure wireless systems, renowned for ease of use and reliable performance
  • Included windscreen tames plosive, breath and wind noises for clean and intelligible sound
  • Tailored frequency response refined for crisp and clear vocal reproduction
  • Legendary Shure precision engineering for durability and performance

 

Components

Components

Furnished Accessories

Furnished Accessories

Amount Part Title
1 Power Supply Part PS24E
1 clothing clip
1 windscreen
1 Carrying Case Part 95E16526

Available Variants

Available Variants

Specs

Specs

Technical specifications

BLX14/SM31 Specifications
Set Type:
Headset
Amount of Bodypacks:
1
Amount of TQG Mics:
1
BLX4 Specifications
Weight:
241 g
Height x Width x Depth:
40.0 × 188.0 × 103.0 mm
Transmission:
Analog
Type of Power Supply:
External
Receiver Housings:
Molded ABS
Active Antenna Possible:
No
Bias via BNC:
No
High Density Mode:
No
Interference Detection:
No
Remote Control:
No
Number of compatible systems info:
12
DANTE-Enabled Products:
No
Scan Features:
Quick Scan
Sync Features:
None
Detachable Antennas:
No
Network ability:
No
Software control :
No
Logic:
No
Cascade:
No
Rack Hardware:
Optional: URT2
Receiver Displays:
LEDs
Receiver type:
Single
Line Mic Switch:
No
Image Rejection:
50 dB, typical
RF Sensitivity:
-105 dBm, for 12dB SINAD, typical
Phantom Power Protection:
No
BLX1 Specifications
Weight:
75 g
Height x Width x Depth:
110.0 × 64.0 × 21.0 mm
Battery life alkaline:
14 h
Form Factor:
Bodypack
Operating Range (up to):
100 m (Under typical conditions)
Transmitter housings:
Molded ABS
Audio Mute:
No
Detachable Antennas:
No
Switchable RF power:
No
Batteries:
AA
Battery Status:
Multi-Color LED
Connectors:
TQG
Frequency Diversity:
No
Functionality:
Transmitter
Gain adjustment range:
26 dB
High Density Mode:
No
Included antenna:
1/4 wave
Input impedance:
1000 kΩ
SM31FH Specifications
Weight:
60 g
Frequency Response:
45 Hz – 20 kHz
Frequency Response:
Tailored
Sensitivity:
-50.00 dBV/Pa – 3.16 mV/Pa
Equivalent Selfnoise:
28 dB
Sound Pressure:
145.0 dB
Transducer Type:
Condenser
Polar Pattern:
Cardioid
Switchable low cut:
No
Connectors:
TQG (T4AF, 4-Pin Mini)
Attenuator:
No
Interchangeable Capsule:
No
Main Functionality:
Performance
Headphone Output:
No
Requires Phantom Power:
5 V DC (nominal), 10 V maximum(DC bias) VDC
Cartridge:
Fixed

Downloads

Downloads

Comparable products

Comparable products

Optional accessories

Optional accessories

faq

faq

Are the handheld transmitter capsules interchangeable?

No.

I perform all over Europe. What system should I buy?

The 2.4 GHz range that is used with GLX-D systems is usable globally without any need for registration. There is no UHF TV band used for BLX that can be used all over Europe and in many countries you need to register the systems.
Full list of Shure technical questions and answers

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