SHURE Wireless Lavalier System (BLX14UK/CVL)

Reliable wearable lavalier microphone for spoken word applications with rack-mount (BLX) analogue wireless transmission

Key Features:

  • Up to 14 hours of continuous use with 2 AA batteries. 300 ft (100 m) transmission radius
  • Single channel wireless receiver with microprocessor-controlled internal antenna diversity
  • Clip-on lavalier condenser microphone
  • Ideal for professional presentations
  • Works with Shure wireless systems

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    Product Code: 500041310

    Want delivery on Tue 17th of Dec? Order in the next and select Next Day Delivery.

    Availability: Low Stock!!

    The BLX14UK/CVL features the CVL lavalier microphone - a discreet condenser lavalier microphone suitable for spoken word and presentations, a BLX1 bodypack transmitter and BLX4R rack mount analog wireless receiver for up to 12 compatible channels per group with group and channel scan for easy set-up.
    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, CVL lavalier microphone, power supply, lavalier clip, windscreens, and user guide.



    • Compatible systems per frequency band (up to): 12
    • Selectable frequencies: Up to 150
    • Auto Setup Features: QuickScan : Finds group with most compatible frequencies and sets to best frequency
    • Audio Reference Companding: No
    • Included Antennas: BLX4, BLX88: Internal, BLX4R: Detachable
    • Antenna Options: No
    • Receiver Network Ability: No
    • PC Control: No
    • Rack Hardware: URT2 (not included), Rack mount brackets (only with rackable/BLX-R Sets)
    • Case: No
    • Transmitter Display: LED
    • Receiver Display: BLX4, BLX88: LED, BLX4R: High-resolution LCD screen
    • Battery, Endurance: 2AA, up to 14h
    • Environment: Small to medium stages


    • Operating Range: 91 m ( line of sight - actual range depends on RF signal absorption, reflection and interference)
    • Available Frequencies: Between 524–865 MHz (available frequencies depend on applicable regulations in country where system used)
    • Audio Range: 50–15,000 Hz (dependent on microphone type)
    • Transmitter RF Output Power: 10 mW, typical (varies by region)
    • Audio Output Connector: XLR and 1/4" (6.3 mm) unbalanced Maximum Output Level: -27 dBV (XLR, mic level), -13 dBV (1/4")
    • Battery Life: Up to 14 hours
    • Dynamic Range: 100 dB A-weighted
    • System Distortion: 0.5% THD typical (ref. +/- 38 kHz deviation, 1 kHz tone)
    • Operating Temperature Range: -18°C (0°F) – +50°C (122°F)
    • Power Requirements: BLX1, BLX2: 2 AA alkaline or rechargeable batteries
    • BLX88: 12–18 V DC at 320 mA, supplied by external power supply



    • Output Impedance:
    • - XLR connector: 200 O
    • - 6.35 mm (1/4") connector: 50 O
    • Audio Output Level, Ref. ±33 kHz deviation with 1 kHz tone:
    • - XLR connector: –20.5 dBV (into 100 kO load)
    • - 6.35 mm (1/4") connector: –13 dBV (into 100 kO load)
    • RF Sensitivity: -105 dBm for 12 dB SINAD, typical
    • Image Rejection: >50 dB, typical
    • Dimensions: 50 mm X 198 mm X 163 mm H x W x D
    • Weight, without antennas: 998 g
    • Housing: Molded ABS, steel
    • Power Requirements: 12–15 V DC @ 260 mA, supplied by external power supply (tip positive)


    • Audio Input Level:
      • - gain max: -16 dBV maximum
      • - gain min (0 dB): +10 dBV maximum
    • 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)
    • Weight: 75 g, without batteries
    • Housing: Molded ABS
    • Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline
    • Battery Life: up to 14 hours (alkaline)


    BLX1 - Bodypack Transmitter
    Up to 14 hours of continuous use with 2 AA batteries. 300 ft (100 m) transmission radius.

    BLX4 - Single Channel Receiver
    Single channel wireless receiver with microprocessor-controlled internal antenna diversity.

    CVL - Lavalier Condenser Microphone
    Clip-on lavalier condenser microphone in a discreet, miniature form factor ideal for professional presentations. Works with Shure wireless systems.

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