Place the EO-3 MAX where you expect to be eavesdropped and simply plug it in. You can even record your own voice to be used as an acoustic noise. It works by overlapping your conversation by randomly generated words. In contrast to ultrasonic noise, acoustic noise is audible. Thus, protecting you from being eavesdropped on through a window pane, through a wall or even by a third-party listening in from a distance. Easy to UseĪcoustic noise is especially efficient against laser and stethoscope microphones. You can even record your own voice to be used as an acoustic noise. Its advantage is that it is inaudible to human ear so it does not disrupt your meetings and it is completely discreet.Īcoustic noise is especially efficient against laser and stethoscope microphones. Thanks to the created ultrasonic barrier, microphones will not be able to record your conversations. Microphones are the most common means of recording your conversation – they can be found in wiretaps, bugs but also in smartphones and even watches. Ultrasonic noise protection is truly reliable as it protects against most of the listening devices and bugs. It efficiently blocks microphone devices in range up to 7 meters (23 ft), rendering all the recordings absolutely unusable.
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