Shure BLX14/SM31 Fitness Wireless Headworn Microphone System | Frequency: J11 (596-608, 614-616 MHz)
Shure BLX14/SM31 Fitness Wireless Headworn Microphone System | Frequency: J11 (596-608, 614-616 MHz)
SoundPro Item: 47810 | Part Number: BLX14/SM31-J11
Usually ships in 5-7 business days
- 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
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.
- System
- Working Range: 91 m (300 ft) Line of Sight
- Audio Frequency Response: 50 to 15,000 Hz
- Total Harmonic Distortion Ref. ±33 kHz deviation with 1 kHz tone: 0.5%, typical
- Dynamic Range: 100 dB, A-weighted, typical
- Operating Temperature: -18°C (0°F) to 57°C (135°F)
- 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
- max: -16 dBVmaximum
- min (0 dB): +10 dBVmaximum
- Gain Adjustment Range: 26 dB
- Input Impedance: 1 MΩ
- RF Transmitter Output: 10 mW, typical
- Dimensions (HxWxD): 4.33x2.52x0.83" (110x64x21mm)
- Weight: 2.6 oz. (75 g), without batteries
- Housing: Molded ABS
- Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline
- Battery Life: up to 14 hours (alkaline)
- BLX4 Receiver
- Output Impedance
- XLR connector: 200 Ω
- 6.35 mm (1/4") connector: 50 Ω
- Audio Output Level Ref. ±33 kHz deviation with 1 kHz tone
- XLR connector: –27 dBV (into 100 kΩ load)
- 6.35 mm (1/4") connector: –13 dBV (into 100 kΩ load)
- RF Sensitivity: -105 dBm for 12 dB SINAD, typical
- Image Rejection: >50 dB, typical
- Dimensions (HxWxD): 1.57x7.4x4.06" (40x188x03mm)
- Weight: 8.5 oz. (241 g)
- Housing: Molded ABS
- Power Requirements: 12–15 V DC @ 235 mA (BLX88, 320 mA), supplied by external power supply (tip positive)
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