Shure BLX14/SM31 Headworn Wireless System, H9
The BLX14/SM31 Headworn Wireless System is part of the BLX wireless systems family. Shure BLX Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it’s the most accessible way to own the stage. Includes BLX4 wireless receiver, BLX1 bodypack transmitter, SM31 fitness headset microphone, power supply, clothing clip, windscreens, and user guide.
BLX1 - Bodypack Transmitter
Up to 14 hours of continuous use with 2 AA batteries. 300 ft (100 m) transmission radius.
Gain Adjustment Range: 26 dB
Input Impedance: 1 MΩ
RF Transmitter Output: 10 mW, typical, varies by region
Dimensions: 110 mm x 64 mm x 21 mm (H x W x D)
BLX4 - Single Channel Receiver
Single channel wireless receiver with microprocessor-controlled internal antenna diversity.
Output Impedance: XLR connector 200 Ω, 6.35 mm (1/4") connector 50 Ω
RF Sensitivity: -105 dBm for 12 dB SINAD, typical
Image Rejection: >50 dB, typical
SM31FH - Fitness Headset Condenser Microphone
Cardioid condenser headset microphone for wireless systems features hydrophobic construction that repels moisture. For use in fitness instruction.
Type: Electret Condenser
Frequency Response: 45–20,000 Hz
Polar Pattern: Cardioid
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