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Shure BLX14/W85 Lavalier Wireless System

BLX4 single channel wireless receiver; BLX1 bodypack transmitter; WL185 cardioidcondenser lavalier microphone with windscreen and tie clip; padded zipper case; PS23 power supply and URT2 rack tray (optional accessories).

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About Shure BLX14/W85 Lavalier Wireless System

WL185 Supercardidioid Lavalier Microphone


WL185 (Cardioid): Recommended for general purpose sound reinforcement applications requiring good rejection of ambient noise. Use of windscreen highly recommended. Pickup angle: 130 degrees.

BLX1 Bodypack Transmitter


  • Up to 14 hours of continuous use with 2 AA batteries (included)
  • Up to 300 ft (100 m) transmission radius
  • Quick and easy receiver frequency matching
  • TQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cables
  • Toggle on/off switch
  • Adjustable gain control of 26dB (+10 to -16dB)
  • Lightweight, rugged construction 


  • Transmitter Type: Bodypack

BLX4 Single Channel Receiver


  • One-touch QuickScan frequency selection quickly locates the best open frequency (in case of interference)
  • Up to 12 compatible systems per frequency band (region-dependent)
  • XLR and ¼” output connectors
  • Microprocessor-controlled internal antenna diversity
  • Two-color audio status indicator LED
    • Green: Normal audio levels
    • Red: Excessive audio levels (overload/clipping)


  • 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
    40 mm X 188 mm X 103 mm (H x W x D)
  • Weight
    241 g (8.5 oz.)
  • Housing
    Molded ABS
  • Power Requirements
    12–15 V DC @ 160 mA (BLX88, 320 mA), supplied by external power supply (tip positive)
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