BL Series Piezo Ceramic Microphone

By Knowles 115

BL Series Piezo Ceramic Microphone

Knowles' piezo ceramic microphone series is rugged, stable, and versatile. Design variables include standard, thin, or a one-half inch cylindrical shell with a cable assembly. Both communication and broadband frequency responses are available. The series features high vibration sensitivity and may be used as accelerometers.


  • Ceramic vibration designs
  • High vibration sensitivity
  • High resistance to mechanical shock
  • Integral FET amplifier
  • Wide frequency range


  • Communications - headsets, handsets, earpieces, telephony, voice recognition, emergency services, military, surveillance
  • Pro audio - in-ear speakers, lapel microphones, boom microphones
  • Medical and more - sensors, audiometers, medical implants