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Amazon.com : Ultrasonic Audio Recording Blocker | …

    https://www.amazon.com/Ultrasonic-Recording-Blocker-Generator-BugHunter/dp/B075MBND1N
    Dictaphone jammer BugHunter BDA-3 . Microphone suppressor "DAudio bda-3 Voices" with 7 ultrasonic transducers with an improved jamming system and an …

Tower-A mini Ultrasonic audio jammer for efficient ...

    https://www.detective-store.com/ultrasonic-audio-jammer-tower-a-mini-for-efficient-blocking-of-dictaphones-and-wiretaps--1792.html
    The TOWER-A mini ultrasonic audio jammer is a smaller version of the Tower-A, model It is a professional, one of the best white noise generating devices that is designed to block out listening devices with built-in or external wireless …

Buy Audio Jammer Pro - Microsoft Store

    https://www.microsoft.com/en-us/p/audio-jammer-pro/9nzkjmsc0gqh
    Best practices: use in conjunction with an ultrasonic destabilizer of microphones. And still preferably with ambient background sound such as a low volume TV or radio. To have a completely safe environment. Common question: Audio Jammer Pro works like a wiretapping blocker? No, it simulates what makes a equipment (device) Blocker tapping.

EO-3 PRO Audio Acoustic and Ultrasonic Speech …

    https://eshop.eo-security.com/bug-jammers/directional-ultrasonic-generator/
    EO-3 PRO Audio Acoustic and Ultrasonic Speech Protector. A unique speech protector designed as a classic wooden speaker. The EO-3 PRO speech protector is discreet and very elegant. It does not disrupt your meetings and protects you within a range of 5-30 meters (17 - 98 ft). The jammer is suitable for permanent placement, e.g., in a meeting room.

Understanding the Effectiveness of Ultrasonic …

    https://deepai.org/publication/understanding-the-effectiveness-of-ultrasonic-microphone-jammer
    (1) The i4 jammer 3 3 3 The i4 jammer includes a traditional audio jammer (in the audible band) and a ultrasonic jammer. We only activate the ultrasonic module. is shown in Figure 1(b), and consists of a row of five ultrasonic transducers on the side and two more on the top. These transducers operate at the very low end of ultrasonic frequency ...

Omnidirectional 360 degree audio jammer | Endoacustica

    https://www.endoacustica.com/omnidirectional-audio-jammer.php
    The jamming audio signal is not actually perceived by the human ear because of its working within the ultrasound band! (25,5KHz-26,5KHz) This device 12V battery working time about 2hours & 230V AC working time about 5hours. Omnidirectional action field (360°). This device 12V battery working time about 2hours & 230V AC working time about 5hours.

Audio Jammer | Counter Surveillance Systems

    https://www.brickhousesecurity.com/counter-surveillance/audio-jammers/
    Audio jammers are useful for a variety of applications, but most importantly, for protecting privacy. These devices come in an assortment of styles and functionalities, from RF and digital audio jammers to white noise makers, but each of them works with the same intended purpose: to scramble or obscure recordings, making unwanted surveillance ...

Amazon.com: audio jammer

    https://www.amazon.com/audio-jammer/s?k=audio+jammer
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How to Block the Ultrasonic Signals You Didn't Know …

    https://www.wired.com/2016/11/block-ultrasonic-signals-didnt-know-tracking/
    These ultrasound "beacons" emit their audio sequences with speakers, and almost any device microphone---like those accessed by an app on a smartphone or tablet---can detect the signal and start to ...

Speech Jammer • Audio Jammer / Noise Generator

    https://mynoise.net/NoiseMachines/audioJammerNoiseGenerator.php
    The sound of a jammer should be very difficult to filter out or remove when present in an audio recording. While commercial audio jammers often rely on white noise, this generator, however, uses a more efficient sound with articulation similar to speech. It is also buried under severe distortion, which makes recovery algorithms have a hard time ...

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