The Shure BLX14R/SM35 Wireless Headworn Microphone System delivers professional hands-free vocal performance for fitness instructors, musicians, worship leaders, presenters, and active performers. Combining the Shure SM35 cardioid condenser headset microphone, BLX1 bodypack transmitter, and BLX4R rackmount wireless receiver, this complete system provides clear vocal reproduction with the freedom to move naturally during demanding performances and presentations.
Designed for applications where handheld microphones are impractical, the BLX14R/SM35 features a lightweight, secure-fitting headworn microphone that maintains consistent positioning during movement. Its cardioid pickup pattern helps reduce unwanted background sound, making it particularly useful for fitness classes, live stages, and other environments with nearby sound sources.
The Shure BLX analog wireless platform offers one-touch QuickScan frequency selection, up to 14 hours of transmitter battery life, and an operating range of up to 300 feet under suitable conditions. With its rackmount receiver and professional audio connections, the Shure BLX14R/SM35 is a practical solution for portable and installed sound systems.
Shure SM35 Cardioid Headworn Condenser Microphone
The included Shure SM35 is a professional headworn condenser microphone designed for active performers and presenters who need secure microphone placement and dependable vocal pickup.
Unlike handheld microphones or clip-on lavaliers, the SM35 positions the microphone close to the mouth, helping maintain a consistent speaking or singing distance as the user moves.
Secure Fit for Active Performers
The lightweight headset frame is designed to remain comfortably positioned during energetic movement. Its flexible gooseneck allows users to adjust microphone placement for clear vocal pickup.
This makes the SM35 particularly suitable for fitness instructors, aerobics trainers, musicians, worship leaders, and stage performers.
Cardioid Pickup for Vocal Clarity
The SM35 features a cardioid polar pattern that emphasizes sound arriving from the front of the microphone while reducing pickup from the sides and rear.
This directional design helps manage background noise and nearby sound sources, making it useful in amplified environments.
The microphone's close positioning also supports consistent vocal levels during presentations, exercise instruction, and live performances.
Shure BLX1 Bodypack Transmitter
The included Shure BLX1 bodypack transmitter connects to the SM35 headworn microphone and provides wireless audio transmission to the BLX4R receiver.
Its compact, lightweight design allows users to move freely without managing a microphone cable running to the sound system.
Powered by two AA batteries, the BLX1 delivers up to 14 hours of operation, depending on battery type and operating conditions.
Convenient controls and adjustable transmitter gain help accommodate different speaking and performance levels.
Shure BLX4R Rackmount Wireless Receiver
The Shure BLX4R is a single-channel rackmount wireless receiver designed for professional sound reinforcement and installed audio applications.
Its rugged metal chassis makes it suitable for portable equipment racks, fitness facilities, houses of worship, theaters, and live performance systems.
One-Touch QuickScan Frequency Selection
Shure QuickScan automatically searches for an available operating frequency within the system's selected frequency band.
This simplifies wireless setup and helps users select an appropriate frequency in environments where multiple wireless systems may be operating.
Professional Audio Connections
The BLX4R includes balanced XLR and 1/4-inch audio outputs for connection to compatible mixing consoles and professional sound equipment.
The receiver also provides an LCD display with RF and audio level information, helping users monitor system operation.
Included rackmount hardware allows convenient installation in standard equipment racks.
Professional Wireless Performance for Active Applications
The Shure BLX14R/SM35 uses analog UHF wireless technology to provide hands-free microphone operation for professional speech and vocal applications.
With an operating range of up to 300 feet (91 meters) under suitable line-of-sight conditions, the system allows presenters and performers to move throughout compatible performance spaces.
The SM35 microphone has a frequency response of 40 Hz–20 kHz, while the BLX wireless system's audio frequency response is 50 Hz–15 kHz, depending on microphone type.
These specifications describe different components of the complete wireless system.
Actual wireless range and performance depend on RF interference, obstacles, equipment placement, and environmental conditions.
Shure BLX14R/SM35 Key Features
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Complete professional wireless headworn microphone system
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Includes Shure SM35 cardioid condenser headset microphone
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Secure-fitting, lightweight headset for active performers
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Flexible microphone gooseneck for precise positioning
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Cardioid pickup pattern helps reduce unwanted background sound
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Shure BLX1 bodypack transmitter for hands-free wireless mobility
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Shure BLX4R single-channel rackmount receiver
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Analog UHF wireless transmission
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One-touch QuickScan frequency selection
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Up to 300 feet (91 meters) operating range under suitable conditions
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Up to 14 hours of transmitter battery life using two AA batteries
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Balanced XLR and 1/4-inch receiver audio outputs
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Receiver LCD display with RF and audio metering
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Rackmount hardware included
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Ideal for fitness instruction, live vocals, houses of worship, and presentations
Shure BLX14R/SM35 Technical Specifications
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Specification
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Details
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Manufacturer
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Shure
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Model
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BLX14R/SM35
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System Type
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Wireless Headworn Microphone System
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Wireless Platform
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Shure BLX
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Microphone
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Shure SM35
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Microphone Type
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Electret Condenser Headworn
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Microphone Polar Pattern
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Cardioid
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Microphone Frequency Response
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40 Hz – 20 kHz
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Wireless System Audio Frequency Response
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50 Hz – 15 kHz (depending on microphone type)
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Microphone Maximum SPL
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153 dB SPL
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Microphone Connector
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TA4F
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Transmitter
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Shure BLX1 Bodypack
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Receiver
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Shure BLX4R Rackmount
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Transmission Type
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Analog UHF Wireless
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Frequency Selection
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One-Touch QuickScan
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Operating Range
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Up to 300 ft (91 m), line of sight
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Transmitter Battery Type
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Two AA Batteries
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Battery Life
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Up to 14 Hours
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Receiver Audio Outputs
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Balanced XLR and 1/4-inch
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Receiver Display
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LCD with RF and Audio Level Information
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Receiver Mounting
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Rackmount, Hardware Included
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Operating Frequency Band
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Depends on Selected System Version
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What's Included with the Shure BLX14R/SM35?
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Shure BLX4R Rackmount Wireless Receiver
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Shure BLX1 Bodypack Transmitter
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Shure SM35 Cardioid Headworn Condenser Microphone
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Receiver power supply
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Rackmount hardware
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Supplied microphone accessories and documentation
Common Applications
Fitness Instruction and Aerobics: The secure-fitting headset keeps the microphone positioned near the mouth during active movement, making it useful for fitness classes, personal training, and group exercise instruction.
Live Vocal Performances: Provides hands-free microphone operation for singers, musicians, and performers who need freedom of movement on stage.
Houses of Worship: Suitable for worship leaders, speakers, and musicians who require consistent vocal pickup during services and performances.
Theater and Dance Productions: Allows performers to move naturally while maintaining microphone placement for speech and vocal reinforcement.
Corporate Presentations: Provides professional wireless audio for speakers, trainers, and presenters who need their hands free.
Schools and Educational Facilities: A practical solution for instructors, coaches, and presenters in classrooms, auditoriums, and performance spaces.
Choosing the Correct Wireless Frequency Band
The Shure BLX14R/SM35 is offered in different wireless frequency band configurations.
Before ordering, confirm that the selected frequency band is appropriate for your location and compatible with other wireless microphone systems operating at your venue.
Available frequencies and wireless performance depend on local RF conditions.
Why Buy the Shure BLX14R/SM35 from Audio Supply?
Audio Supply carries professional Shure wireless microphone systems, headworn microphones, bodypack transmitters, receivers, and accessories for live sound, fitness facilities, houses of worship, schools, and commercial audio installations.
The Shure BLX14R/SM35 Wireless Headworn Microphone System is an excellent choice for customers who need hands-free vocal performance, secure microphone positioning, and professional wireless operation.
With its SM35 cardioid headset microphone, BLX1 bodypack transmitter, and BLX4R rackmount receiver, this system delivers a versatile solution for active performers, fitness instructors, presenters, and live sound professionals.
