Shure BLX14R/SM31 Wireless Fitness Headset Microphone System

Wireless Rack-mount Fitness Headset System with SM31FH Headset Microphone

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With simple setup, intuitive interface, and One-Touch QuickScan frequency selection, the system delivers reliable wireless transmission, ensuring that your voice is heard clearly, even over the noisiest gym classes.

Shure BLX4R Rackmount Wireless Receiver

The Shure BLX4R is a single-channel wireless receiver compatible with the BLX1 bodypack transmitter and BLX2 handheld transmitters. It features a rugged metal chassis and, using the included hardware, can be rackmounted with the two removable antennas positioned on the front of the rack—for optimal signal reception in A/V installations and sound-reinforcement applications.

The BLX4R offers one-touch QuickScan frequency selection to quickly search 123 available frequencies and locate a clean RF channel in case of interference. It also employs microprocessor-controlled diversity technology to reduce dropouts. BLX systems allow up to 12 mic channels to operate simultaneously in each frequency band, at a range up to 300′.

The LCD display shows group and channel settings, and allows you to meter audio level and signal strength. An LED indicator even lets you keep an eye on the transmitter’s remaining battery life. The unit offers 1/4″ and XLR connectors with adjustable output level for flexible connectivity to PA systems and mixing boards.

Shure BLX1 Wireless Bodypack Transmitter 

The Shure BLX1 is a bodypack wireless transmitter compatible with BLX Series receivers. With a lightweight, ergonomic design, it is comfortable for performers and presenters to wear, while providing up to 14 hours of continuous use with the two included AA batteries, at a range up to 300′.

Group and channel selection buttons allow for quick and simple frequency matching with the receiver. Other features include an easily accessible On/Off switch and adjustable gain control. The TA4M 4-pin input jack allows you to plug the lavalier, headset, or instrument microphone of your choice or an adapter cable for guitar and bass.

Shure 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.


  • 1 – 53A8611 RACK MOUNT BRACKET
  • 1 – 53B8443 LINK BRACKET
  • 1 – 90AZ8100 HARDWARE KIT
  • 1 – 90F4046 Swivel Adapter
  • 1 – 31B1856 Thread Adapter
  • 2 – 95A8699 ANTENNA/BNC,1/4 WAVE
  • 1 – 95B2313 BAG VINYL, ZIPPERED
  • 2 – 95K2035 CABLE,BNC,22 in.
  • 1 – Power supply



  • 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


Receiver TypeRackmount
Mounting OptionsRackmount (with Included Hardware)
Rackmount Size1 RU (1/2 Rack)
Antenna2 x 1/4 Wave External, Detachable (Rear-Mount)
Number of Audio Channels1
Audio I/O1 x XLR 3-Pin Male Balanced Output
1 x 1/4″ TS Female Unbalanced Output
Audio Output LevelXLR Output:
-20.5 dBV (Mic Level)
1/4″ Output:
-13 dBV (Instrument Level)
Frequency Response50 Hz to 15 kHz (Dependent on Mic)
ImpedanceXLR Output:
200 Ohms
1/4″ Output:
50 Ohms
Approximate RF Sensitivity-105 dBm
Adjacent Channel Isolation>50 dB
Power RequirementsAC/DC Power Adapter
AC/DC Power Adapter12 to 15 VDC at 260 mA, Center-Positive (Included)
Display & Indicators1 x Backlit LCD (AF Level, Channel, Group, Metering, RF Level)
1 x LED (Transmitter Battery Status)
Operating Temperature0 to 135°F / -17 to 57°C
Dimensions7.8 x 2 x 6.4″ / 198 x 50 x 163 mm (without Mounting Hardware, Antennas)
Weight35.2 oz / 998 g
Wireless TechnologyAnalog UHF
Number of RF Channel Frequencies123
DiversityAntenna Diversity
RF Frequency BandH9:
512 to 542 MHz
RF Bandwidth24 MHz
RF Channel ScanningAuto-Scan
Max Operating Range300′ / 91.4 m (Line of Sight)
Max Transmitters per Band12
Packaging Info
Package Weight6.5 lb
Box Dimensions (LxWxH)18.4 x 14.7 x 3.8″

Shure BLX1 Wireless Bodypack Transmitter (H9: 512 To 542 MHz) Specs

Wireless TechnologyAnalog UHF
RF Frequency BandH9:
512 to 542 MHz
RF Bandwidth24 MHz
Max Operating Range300′ / 91.4 m (Line of Sight)
Transmitter TypeBodypack
RF Output Power10 mW
Audio I/O1 x TA4/Mini XLR 4-Pin Male Input (Lockable)
MutingOff/On Switch
Auto-Level ControlNo
Gain Range-16 to +10 dB
Sync MethodManual
Antenna1 x Flexible Whip, Fixed (Beltpack)
Power RequirementsBattery
Battery Type2 x AA (Included)
Approx. Battery Life14 Hours (Alkaline)
Display & Indicators1 x Multi-Segment LED (Channel, Group)
1 x LED (Battery Status, Power)
Dimensions2.5 x 4.3 x 0.8″ / 64 x 110 x 21 mm
Weight2.6 oz / 75 g (without Batteries)
Packaging Info
Package Weight0.7 lb
Box Dimensions (LxWxH)11.1 x 5.3 x 3.2″

Shure SM31FH Fitness Headset Condenser Microphone Specs

Sound FieldMono
CapsuleElectret Condenser
Polar PatternCardioid
High-Pass FilterNone
WindscreenFoam (Included)
Frequency Range45 Hz to 20 kHz
Maximum SPL145 dB SPL (1 kHz, 1-Kilohm Load)
Impedance600 Ohms at 1 kHz
Output Level-50 dBV/Pa
Dynamic Range117 dB (1 kHz, 1-Kilohm Load)
Signal-to-Noise Ratio66 dB (1 kHz)
Equivalent Noise Level28 dB A-Weighted (Typical)
Cable Length45″ / 1.1 m
Operating Voltage5 to 10 V
MountingOver-Ear (Double/Neckband)
Weight2.11 oz / 60 g
Packaging Info
Package Weight0.5 lb
Box Dimensions (LxWxH)7.8 x 6.35 x 3.05″

Jalan Pinangsia Raya Ruko No.66F, RT.3/RW.5, Pinangsia

4.9 162 reviews

  • Avatar Front “Office” ★★★★★ 2 minggu yang lalu
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  • Avatar Rudin Samiaji ★★★★★ 2 months ago
    Ramah dan bersaing
  • Avatar AFSoundAndMusic ★★★★★ 2 months ago
    Staff-nya sangat helpful. Setelah nanya-nanya, kemudian diberi rekomendasi yang sesuai.
  • Avatar wandi muhamad ★★★★★ 3 months ago
    Pelayanan baik dan kordinasi baik
  • Avatar Sahat J Purba Purba ★★★★★ 3 months ago
    Silahkan kunjungi dan buktikan dijamin tdk mengecewakan
  • Avatar Rifaldi Adi Pamungkas ★★★★★ 3 months ago
    Adminnya baik banget, bisa bantu explain technical issue yang di alami sama orang awam seperti saya wkwkw. Pokonya bagi temen² yg kurang tau soal per sound system an, rekomend banget konsultasi sama pusat sound system dehh
  • Avatar Deliyus Adiyus ★★★★★ 3 months ago
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  • Avatar buyung panto ★★★★★ 4 months ago
    Tempat rekomendasi dan konsultasi mengenai soundsystem. Terbaik pelayanannya..
  • Avatar rully Ririmasse ★★★★★ 4 months ago
    excellent service, ramah dan mantab
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  • Avatar winarso 688 ★★★★★ 6 months ago
    Stok sempurna dan pelayanan karyawan, top dech
  • Avatar Adhiyaksa Nugroho ★★★★★ 6 months ago
    pelayanan oke, kualitas speaker sangat bagus … untuk harga cukup ramah di kantong.
  • Avatar Bambang Purnama ★★★★★ 7 months ago
    Mantab beli disini, kita dapat edukasi terlebih dahulu.
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  • Avatar Achmad Fauzie ★★★★★ 8 months ago
    Pelayanan ok.. Diskonnya mayan.. sudah seperti keluarga dibuatkan kopi segala.. thanks
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