The technical principle of ultrasonic 360-degree omnidirectional speech jammer mainly relies on emitting ultrasonic waves that exceed the threshold of human hearing, these ultrasonic waves are accompanied with random noise, makes the microphones of mobile phones, recording pen and other digital devices record, the sound of normal conversation is annihilated in the random noise, makes the recorded audio invalid. Because these ultrasonic noisy noises are generated randomly, can not be restored, therefore, the interfered audio can not be restored, to ensure that the original information is not leaked and spread. the ultrasonic waves emitted by this kind of jammer are harmless to human beings, because they are beyond the range of human hearing, therefore the ultrasonic waves can not be heard by human ear. relative to human ear, ultrasonic jammer is silent and low noise.
The main application scenarios include situations where there is a need to protect the contents of a conversation from disclosure, such as during a company meeting, business negotiations or talking to old friends. By simply turning on the switch button, ultrasonic recording jammer can play a role, effectively protect the conversation from being captured and leaked by the recording device. this kind of device is not only suitable for formal important conversation occasions, also because of its quiet and low noise characteristics, will not disturb the normal conversation, therefore has wide application potential in all kinds of occasions that need privacy protection.
The functions and characteristics of ultrasonic 360 degree omnidirectional speech jammer are mainly reflected in the following aspects:
Omni-directional coverage: The jammer can achieve omni-directional coverage of 360 degrees, ensures that in its range, no matter from which direction the sound is propagated, can be effectively interfered, thus providing a comprehensive anti-recording environment.
Ultrasonic technology: Using ultrasonic technology, the jammer can send out a specific frequency of sound waves, these sound waves can be received by mobile phones, recording pens and other digital products but cannot be heard by human ears interference. this technology can form a safe space, in which there is no need to worry about being recorded by others. at the same time, compared with other anti-recording devices, has no buzzing noise, can quietly guard the conversation environment, is not easy to be noticed.
Adjustability: realizes voice-like technical interference through external speakers, provides some flexibility, can adjust the use of jammer according to actual needs.
Good concealment: The use of air purifier as the appearance of the product, from the surface looks like an ordinary air purifier, with excellent concealment.
Application scope: the protection range of the jammer is approximately a conical space, interference range is about 15 square meters, for most of the mobile phones and other digital products interference distance is more than 2 meters, can form a safe space.
Safety: anti-voice recorder is only effective on mobile phones and other digital products, has no interference to people, because the human body does not receive ultrasonic wave, all the noise recorded by mobile phone is noise, but people can not hear it, does not affect normal conversation and communication, can not even be noticed that the anti-voice recorder is working.
In summary, ultrasonic 360 degree omnidirectional speech jammer provides an effective anti-recording solution for the occasions where privacy needs to be protected through its omnidirectional coverage, ultrasonic technology, multi-mode interference, adjustability, good concealability, application range and security.
