Overview
Shure BLX14/SM31 BLX14 HEADSET SYSTEM W/SM31
BLX1
Up to 14 hours of continuous use with 2 AA batteries. 300 ft (100 m) transmission radius.
Description

The durable BLX1 features a lightweight, ergonomic design and adjustable gain control. For use with BLX® Wireless Systems.

Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.

Features


Quick and easy receiver frequency matching
TQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cables
Easily accessible On / Off switch



Specifications




Battery Life
Up to 14 hours


Typical Operating Distance
300 ft (100 m) transmission radius




BLX4
Single channel wireless receiver with microprocessor-controlled internal antenna diversity.
Description

The durable BLX4 features simple setup, intuitive controls, and microprocessor-controlled internal antenna diversity. One-touch QuickScan frequency selection quickly locates the best open frequency in case of interference. For use with BLX® Wireless Systems. 
 
Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.

Features


XLR and ¼" output connectors
Two-color audio status indicator LED

Green: Normal audio levels


Red: Excessive audio levels (overload / clipping)




Specifications




Compatible Systems per Band
Up to 12 (region dependent)




SM31FH
Cardioid condenser headset microphone for wireless systems features hydrophobic construction that repels moisture. For use in fitness instruction.

Headset microphone for wireless systems used in fitness instruction
Condenser cartridge with moisture-repellent housing that resists corrosion
Cardioid polar pattern
Available in bundled BLX and GLX-D® wireless systems, and works with all Shure wireless headset systems featuring TA4F (TQG) connectors

Description

The 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.
Available in bundled BLX and GLX-D wireless systems, the SM31FH features TA4F 4-pin (TQG) connectors that make it a viable replacement for any Shure wireless headset system.

Features


Wireframe headset fits securely and comfortably for fitness and aerobics instructors
Moisture-repellent hydrophobic fabric protects the microphone cartridge from harmful corrosion that occurs in humid environments
Flexible gooseneck provides discrete adjustment capabilities to optimize placement for greatest isolation
Lightweight and low-profile design won’t fatigue instructors during high-impact use
TA4F (TQG) connector is compatible with any Shure wireless bodypack
Included windscreen tames plosive, breath, and wind noise for clean and intelligible sound
Tailored frequency response ideal for crisp, clear vocal reproduction
Available with bundled BLX and GLX-D wireless systems
Legendary Shure precision engineering for durability and performance



Specifications




Type
Electret Condenser


Frequency Response
45–20,000 Hz


Polar Pattern
Cardioid