TOWER-A mINI ultrasonic jammer of dictaphones and microphones

The Tower-A mINI device is a unique and effective ultrasonic device used to protect classified information.

Based on the author's algorithm of generating of the digital ultrasonic signal jamming. Effectively it protects confidential conversations, conferences, business conferences and secret meetings before the eavesdropping and recording with any voice recorders.

TOWER-A mINI effectively blocks wiretaps, voice recording and microphones in rooms about the area about 1-3m such as:

  • microphones in cell phones
  • digital recorders of the sound with the built-in microphone
    or the microphone on the cable
  • professional digital dictaphones of the type : EDIC-mini,
    Gnome, Olympus, Papyrus...
  • voice recorders built-in in Smartphones of the type the
    iPhone, HTC, SONY , LG, SAMSUNG...
  • radio microphones, microphones of recorders
    audio-the video
  • microphones of cameras, bugging microphones
  • professional dictaphones hidden in cards to ATMs
  • older and newer voice recorders in the metal-housing

Ultrasonic Jammer TOWER-A mINI prevents also to leakages of the information by means of buggings analog, digital, optical and seismic. The product is used for stationary work in rooms on a conference table, desk, etc.


  • The kind of the work: the author's algorithm of generating of the digital ultrasonic signal jamming.
  • Turning on and off using the illuminated switch.
  • The signalling of the charging and the status of the battery.
  • The quiet works - it does not give the audible and burdensome sound
  • The simple services and the exploitation.



  • the maximum range: depending on the eavesdropping one ought to accept the area 1-3m
  • the directivity of the work of the device TOWER-A mINI : 
    in the ground plane  360 °  
    in the vertical plane 85 °
  • the power supplie: the built-in effective battery + the power supply 110-230 V
  • the working times from the battery about 1 hour
  • battery charging time 3 hours
  • weight : 2 kg, the range of the work in the temperature from 0 ° to + 40 ° C (32-104 Fahrenheit)
  • the size : the height 12 cm., the diameter 16 cm.
  • the device is delivered in aesthetic waterproof carrying case
  • the guarantee: 36 months