This is a Shure BLX14/SM31 Wireless Headworn Microphone System.

Shure BLX14/SM31 Wireless Headworn Microphone System

  • $329.99
    Unit price per 
Shipping calculated at checkout.


  • Application:Fitness/Active
  • Configuration:Headset Wireless System
  • System: Simultaneous Channels:Up to 12
  • System: Analog/Digital:Analog
  • System: Frequency Range:512-542MHz
  • System: Operating Range:300 ft. Line-of-sight
  • System: Frequency Response:50Hz-15kHz
  • System: Microphone Included:Yes
  • Microphone: Form Factor:Headworn
  • Microphone: Color:Black/Orange
  • Microphone: Type:Condenser
  • Microphone: Polar Pattern:Cardioid
  • Microphone: Frequency Response:40Hz-20kHz
  • Transmitter: Form Factor:Bodypack
  • Transmitter: Dynamic Range:100dB (A weighted)
  • Transmitter: Battery Type:2 x AA
  • Transmitter: Battery Life:Up to 14 hours
  • Transmitter: Connector:TA4M
  • Transmitter: Dimensions:4.3" x 2.5". x 0.8"
  • Receiver: Antenna Type:Fixed
  • Receiver: Type:Table Top
  • Receiver: Front Panel Display:Yes
  • Receiver: Displays:LCD
  • Receiver: Outputs:1 x XLR, 1 x 1/4"
  • Receiver: Dimensions:1.5" x 7.4" x 4"
  • Receiver: Weight:0.5 lbs.