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PKI 2920 Miniature Directional Microphone

Product number: PKI 2920

  • PKI-2920-Miniature-Directional-Microphone-with-Data-Transmission

    PKI 2920 Miniature Directional Microphone with Data Transmission

With a size of only 38 x 48 x 18mm, PKI 2920 Miniature Directional Microphone can be attached everywhere quickly and inconspicuously using our „adhesive paste“ and records conversations up to a distance of 50m. This is enabled by the built-in line microphone recording the sound waves coming from the front and converting them into electrical signals. These again are wirelessly transmitted to the required and commercially available smartphone or Bluetooth headphone in the 2.4GHz range. The advantage of smartphone reception is the additional recorder function, filter possibility and inconspicuousness. This development has been made by PKI on request of a ministery and in the meantime it has proven very successful, i.e. small, inconspicuous, powerful.

Frequency response20 - 15000 Hz
SystemElectret ultra supercardioid
Max. sound pressure120 dB
Signal/noise ratio70 dB
Dimensions38 x 48 x 18 mm
Power supplyLi-Ion battery 5V
Operating time5 h
  • Digital data transmission: 2.4GHz, 10 – 50m
  • Reception: Smartphone or Bluetooth headphone