• Shure BLX14/SM31 Fitness Wireless Headworn Microphone System
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Shure BLX14/SM31 Fitness Wireless Headworn Microphone System | Frequency: H11 (572-596 MHz)

Shure BLX14/SM31 Fitness Wireless Headworn Microphone System | Frequency: H11 (572-596 MHz)

SoundPro Item: 47809 | Part Number: BLX14/SM31-H11

$429.00
$550.00 $429.00
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MSRP: $550.00 | MAP: $429.00

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  • This headworn mic system captures audio while the speaker is in movement
  • It's ideal for aerobics instructors, fitness trainers, and more
  • Moisture-repelling construction protects microphone from humidity and sweat
  • Simple setup and an intuitive interface for legendary audio performance
  • Wireframe headset stays firmly in place during workouts
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The BLX14/SM31 Fitness Wireless Headworn Microphone System from Shure is ideal for capturing audio while providing the maximum capacity for movement--ideal for aerobics instructors, fitness trainers, and more.

This system includes a BLX4 Wireless Receiver, a BLX1 Bodypack Transmitter, a SM31 Fitness Headset Microphone, and the accessories you need to start moving with your sound.

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Specifications

Dimensions
Dimensions (HxWxD)
4.33x2.52x0.83" (110x64x21mm)
Electrical
Power Requirements
2 LR6 AA batteries, 1.5 V, alkaline
Audio
Audio Frequency Response
50 to 15,000 Hz
Gain Adjustment Range
26 dB
Input Impedance
1 MΩ
RF Sensitivity
-105 dBm for 12 dB SINAD, typical
Connectivity
RF Transmitter Output
10 mW, typical
Construction
Housing
Molded ABS
Environmental
Operating Temperature
-18°C (0°F) to 57°C (135°F)
Shipping
Weight
2.6 oz. (75 g), without batteries
General
Working Range
91 m (300 ft) Line of Sight
System
Total Harmonic Distortion Ref. ±33 kHz deviation with 1 kHz tone: 0.5%, typical
Dynamic Range
100 dB, A-weighted, typical
Polarity
Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with respect to pin 3 of low-impedance output) and the tip of the high impedance 1/4-inch output.
BLX1 Transmitter
Audio Input Level
BLX4 Receiver
Output Impedance, Audio Output Level Ref. ±33 kHz deviation with 1 kHz tone
Image Rejection
>50 dB, typical
Power
Battery Life
up to 14 hours (alkaline)

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