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source:Industry News release time:2021-06-02 Article author:sznbone Popular:Prison Jamming system
In the process of working, shielding will generate random interference signals to ensure that the original voice message cannot be recovered from the recorded signal. The interference signal interferes with the recording equipment and does not harm the human body at the same time. After the interference signal is picked up by the recording equipment, it will cause the recorded signal, only the hum noise can not distinguish between the normal voice signals, so as to achieve the purpose of protecting the voice information. Record encryption and security shield, processed and mixed by high and low frequency sound sources to effectively prevent later recovery.
At present, the more popular recording shielding products on the market in our country have a coverage rate of less than 30% for recording equipment. Some enterprise products can only be effective for traditional Chinese analog recording equipment, and are invalid for basic information management of new digital recording equipment. The recording jammer produced by our company has an interference distance of more than two meters for 95% of mobile phones, an interference distance of more than 5 meters for 60% of mobile phones, and an interference distance of 10 meters for mobile phones such as iPhone X and iPhone 8. Series, Huawei mate, Honor, OPPO, VIVO, Samsung, Nubia, Meizu, Nuts and other mobile phones have good interference effects. It has good interference effects on Sony, Samsung, Sanyo, Newman, Lenovo, Olympus and other voice recorders. . MDPB-L7B recording shielding device is a brand-new recording shielding product, suitable for leadership offices, confidential meeting rooms and other places that need to be kept secret.
Product advantages: Good concealment: The use of audio can be used as a corporate product for appearance, which looks exactly the same as an ordinary audio on the surface. At the same time, we increase the social background noise, which is very concealed. Greater shielding effect: For products on the market, the shielding range is larger. Therefore, the stronger the noise signal series of the recording device picked up, the stronger the shielding effect.
Many interference devices: For the current mainstream recording devices, the coverage can reach 85% or more, and the interference effect on various mobile phones such as iPhone series, Huawei mate, Honor, OPPO, VIVO, Samsung, Nubia, Meizu, Nuts, etc. it is good.
Long interference distance: Compared with some other enterprise products, the shielding distance is farther. Generally, in this case, the shielding distance of better recording equipment can reach about 1-2 meters. The anti-recording device is effective on 95% of mobile phones. The interference distance is more than two meters, and the interference distance to 60% of mobile phones is more than 5 meters.
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