Shure BLX14/SM31 Wireless Headset System

Shure BLX14/SM31 Wireless Headset System



Available to order Click for more information

It's time to go wireless! Perfect for fitness instructors, speakers or any situation that requires a hands free solution.

Full Body Workout

The BLX14/SM31 Wireless System is designed to handle even the most fully body workouts. Being made from corrosion-proof materials, the SM31 Fitness Headset is the perfect companion for those who go the extra mile. Through your shouting and sweating, it will perform flawlessly.

Shure BLX14/SM31 Wireless Headset System Features:

  • User-friendly wireless system for fitness instructors
  • Lightweight, moisture resistant headset microphone
  • Uninterrupted signal thanks to Quickscan technology
  • 14-hour battery run time and 100-metre range

Full System Monitoring

Any clipping and the LED switches from green to red. Easily adjusted with the transmitter's gain knob.

Batteries running low, a LED Light will indicate this for you.

Everything about this BLX Wireless System is clear and simple, for effortless set up straight out the box.

Shure BLX14/SM31 Wireless Headset System Specifications:

SM31FH Headset Microphone

  • Connector: TA4F (TGQ)
  • Type: Condenser
  • Frequency Response: 45Hz - 20kHz
  • Polar Pattern: Cardioid
  • Output Impedance: 600O
  • Audio Output Level: -50 dBV/Pa
  • Signal-To-Noise Ratio: 66dB
  • Maximum SPL: 145.0 dB
  • Dynamic Range: 117 dB
  • Equivalent Output Noise: 28 dB
  • Power Requirements: +5 V DC, 10 V Maximum
  • Cable Length: 1.1m
  • Net Weight: 60 g

BLX1 Body Pack Transmitter

  • Connector Type: TA4F (TGQ)
  • Operating Range (Up To): 100 m
  • Batteries: AA (included)
  • Battery Life: 14 hour
  • Battery Status: Multi-Colour LED
  • Transmitter Housings: Molded ABS
  • Gain Adjustment Range: 26 dB
  • Included Antenna: 1/4 Wave
  • Input Impedance: 1 MO
  • Weight: 75 g
  • Dimensions (HxWxD): 110 mm x 64 mm x 21 mm

BLX4 Single Channel Receiver

  • Transmission: Analog
  • Power Supply: External
  • Receiver Type: Single
  • Number Of Compatible Systems Per Frequency Band: 12
  • Receiver Displays: LEDs
  • Housings: Molded ABS
  • Scan Features: Quick Scan
  • Rack Hardware: Optional URT2
  • Image Rejection: 50 dB, Typical
  • RF Sensitivity: -105 dBm, For 12dB SINAD, Typical
  • Weight: 241 g
  • Dimensions (HxWxD): 40 x 188 x 103 mm
More Information
Manufacturer Shure
SKU 132500
Shipping Weight (kg) 2.000000
Warranty 2 years
Series BLX Series
Pole Mountable No


We know you want to get your gear as quickly and as safely as possible, Next Working Day Delivery to UK Mainland Addresses, on all IN STOCK items, if ordered before 3pm. This will include a text or email on the day of delivery giving you an exact hour window of when your gear will be with you.

Orders under £99: £4.99 Delivery Charge


Orders over £99: Free Next Day DPD Delivery (When Ordered before 3pm)


Weekend Delivery (Saturday-Sunday): £9.99 (When Ordered before 3pm Friday)


Heavy Items (over 40kg): £39.99 Pallet Service







Rather not wait in for the delivery? Don’t worry, we’ve got you…In Stock items can be ordered and paid for in-advance Online via our Click & Collect service. As long as if it's in stock at your chosen branch, you can collect the item within 2 hours*.



If you have bought something In-Store or Online and want to return it as unwanted, you have 30 days from when you receive the goods to contact our PMT experts either by phone or email to return your item.

We can offer you a refund if you return your item within 30 Days from purchase date and with 100% perfect packaging. 


Please Note - We cannot accept unwanted returns on microphones, any in-ear earphones or monitors, and any other items that touch your mouth, nose or inner ear if you have removed the hygienic packaging.