The manufacturer sells YX-007 recording shield directly

Application  place







This YX-007 recording shield is a highly integrated  high-tech security product independently developed by Tianjin Yingxun Technology  Co., Ltd. When the illegal elements use recording equipment (such as mobile  phones, recording pens, recorders, etc.) to record you, the recording shield  will generate random noise signals, which can produce suppressive interference  on speech signals, so that only noise information can be picked up by recording  equipment, but it can not distinguish voice information, so as to ensure the  safety of voice information. Widely used in: leading office, confidential  meeting room, military battle room, business negotiation room and all other  places to prevent recording.

Functional  characteristics
1.  Mixed-frequency interference mode
This product is the first time in the industry to adopt  mixing noise interference mode, which is different from the electromagnetic  interference mode used by traditional recording interference equipment, so as to  avoid electromagnetic radiation to the people near the equipment when the  recording interference equipment works.
2. Sound cannot be  restored
This product is  processed by the most seed of true random number. After processing, the human  voice signal and the random interference signal of the equipment are mixed  together, and can not be restored by technical  means.
3. Wide  coverage
Compared with  the traditional recording shielding equipment, the interference distance of this  product to the mainstream recording equipment can be more than 2 meters, and the  interference angle is more than 120 degrees.
4. Simple, Easy to Use and  Flexible
This product is  stable, reliable, highly product-oriented, simple and easy to  use.
Product Function  and Working Principle
1.  Basic Functions
During  the working process of the recording shield, random interference signals will be  generated, which can ensure that the original voice information can not be  recovered from the recording signal. The interference signal interferes with the  recording equipment without harming the human body. When the interference signal  is picked up by the recording device, it will cause only a buzzing noise in the  recording signal and can not distinguish the normal sound signal, so as to  achieve the purpose of protecting the voice  information.
2. Working  Principle
In the working  process of the recording shielder, the true random number is the most seed, and  the high-security encryption algorithm is used to encrypt the random number.  Then the encrypted random number is processed by mixing the high-frequency and  low-frequency sound sources. The interference signal with unrecoverable, silent  and overlapping effect is generated, which interferes with the sound acquisition  equipment, thus forming the effect of sound  shielding.
Product  advantage
1. Basic  Product Status
In the  field of recording shielding equipment, there is only one device known to  people. The recording shielding equipment is mainly aimed at obsolete tape  recorders and very few types of recording pens. For the current mainstream  recording equipment, mobile phones, digital recording pens and so on have no  effect or very poor effect.
For this reason, relying on the information security  technology accumulated over the years, our company independently developed the  recording shield products to meet the shielding function of mainstream recording  devices such as mobile phones, digital recording pens and so on, so as to  protect the conversation content security of  users.
2. Defects of  traditional technology schemes
The traditional recording shielding technology mainly  uses the random pulse sequence in a wide frequency range to interfere with the  recording equipment. High-power and high-frequency signals produce  electromagnetic interference to the recording equipment, which makes the input  voltage or current of the front end of the acoustic sensor exceed the threshold  of the acoustic sensor, so that it can not work normally and achieve effective  voice blocking. This method has no noise, but its main disadvantage is that it  can only interfere with analog recording equipment better, and the new digital  recording equipment is basically ineffective. At the same time, high-power radio  electromagnetic signal will produce electromagnetic radiation, which is harmful  to human body when used for a long time.
3. Product Competitive  Advantage
3.1.  Supporting the shielding of various mainstream recording  devices.
3.2. In the  working range of the shield, the original voice information can not be heard  from the recorded information by recording  equipment.
3.3. Within  the scope of the shield, the original voice information can not be restored from  the recorded information by recording  equipment.
3.4. The  recording shield does not emit audible sound during the working  process.
System  constraints and constraints
Specific descriptions that this product does not support  in some scenarios will be described here.
(1) Equipment type  constraints
The  equipment supports the shielding of various mainstream recording devices,  including mobile phones, recording pens, wireless recording devices,  microphones, etc. However, due to the constant innovation of mobile phone  models, different brands, different periods and different levels of mobile phone  voice processing parts are different, so the recording shielding effect of a few  types of mobile phones is relatively poor.
(2) Coverage constraints
Limited by the technical principles adopted, the  effective shielding distance of the product is generally 2-3 meters, the  effective shielding angle is about 120 degrees, and there will be some  differences for different recording devices.