Place of application
This YX-007mini-s recording shield is a highly integrated high-tech personal safety protection 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 not voice information can be distinguished, so as to ensure speech. The security of sound information. Widely used: leaders, bosses, stars and other high-end personal needs.
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| project | performance parameter |
| Types of shielding equipment | Mobile phones, digital recorders, recorders, all sound acquisition equipment |
| Shielding effect | Over 83% |
| Shielding radius | 50-200cm |
| Angle of action | Greater 90 degrees |
| Built-in battery capacity and operating voltage | 2000mah/12v |
| weight | 600 grams |
| Product size | 145*85*45mm |
power supply
This product adopts two power supply modes: power adapter and battery.
1. When the adapter is powered. The power adapter can be inserted directly into the power supply and charging port of Figure 2.
2. There are 2000 Mha batteries in this product, which can be supplied without power adapter.
Use
After getting this product, check the package first: one host; one power adapter
1. Turn on the power switch in Figure 2, the power indicator lights up, and the machine enters the working state.
2. Turn off the power switch in Figure 2 and turn off the machine.
Note: This product has built-in large capacity batteries that last more than 8 hours. It is recommended that if the batteries are electrified, try to work with batteries.
Integral truncation angle
As shown in Figure 1, the shield transmitter is in front of the machine. In order to achieve the best truncation effect, please adjust the position and angle according to the actual situation. The specific operation can be seen in Figure 3. As shown in Figure 3, for general recording equipment, the truncation distance of this product is about 1.5 meters, and the truncation angle is about 90 degrees. For different recording devices, the distance and angle may vary. Some models have distances of more than 2 meters and angles of more than 120 degrees, but a few models may have distances of less than 1 meter and angles of less than 60 degrees.
The higher the general model, the better the effect. When using, please try to make the distance between the transmitter and the recording equipment of the shield within 1.5 meters, and the angle (mainly the MIC port) within 45 degrees. The closer the distance is, the smaller the angle is, the better the truncation effect is.
Please note that the above data are obtained without any obstruction between the transmitter and the recording device (such as clothing, body, etc.). In the case of obstruction, the truncation distance will be shortened.
Product Charging:
The product is powered by 2000 MAH batteries. When the switch is turned on, the power indicator lights up and the product starts to work. When the power indicator lights are not on, the battery must be charged. When charging, insert the charger into the charging interface to start charging. During charging, the charger indicator is red and the charge can be stopped if the charge becomes green.
Be careful:
1. This product uses radio frequency signal shielding recording equipment, so a little sound after opening is normal, according to the age of the response to the sound is different, this sound has no impact on the human body.
2. When testing, we need to simulate the real environment, communicate with normal volume, and do not need to increase the volume intentionally. This product takes into account its own noise and actual shielding distance, and adopts the best software version. If there are special needs, we can ask for a special version of the software!
Attention to product testing:
The product test shows that in order to prevent the man from recording his own voice, the woman only needs to turn on the recording shield and place it beside her. At this time, the recording device within the shielding radius of the recording shield can no longer record the woman's voice. Even if the man's voice is recorded, it does not matter. In practical use, only refer to the above description.
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.
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.
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 90 & deg;.
This product is stable, reliable, highly product-oriented, simple and easy to use.
1.
During the working process of the recording shield, the random interference signal 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, only a buzzing noise in the recording signal can not distinguish the normal sound signal, thus achieving the purpose of protecting the voice information.
In the working process of the recording shielder, the true random number is the most seed, and the encrypted number is processed by high-security encryption algorithm. Then the encrypted random number is processed by mixing the high-frequency and low-frequency sound sources. The interference signal with irrecoverable, silent and overlapping effect is generated, which interferes with the sound acquisition equipment. Thus forming the effect of sound shielding.
2.
In the field of recording shielding equipment, there is only one equipment known to people. This equipment mainly aims at the obsolete tape recorders, as well as a few types of recording pens, eavesdroppers and so on. 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.
The traditional scheme of recording shielding technology mainly uses random pulse sequence with wide frequency range to interfere in disorder. High-power and high-frequency signals produce electromagnetic interference to recording equipment, which makes the input voltage or current of the front end of the acoustic sensor exceed the threshold of the acoustic sensor, and makes it unable to work normally to achieve the effective resistance of the voice. Plug. This method has no noise, but its main disadvantage is that it can only interfere with analog recording equipment, and the new digital recording equipment is basically ineffective. At the same time, high-power radio electromagnetic signals will generate electromagnetic radiation, which is harmful to human body when used for a long time.
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. In the working range 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.
Specific descriptions that this product does not support in some scenarios will be described here.
(1) Equipment type constraints
The device supports the shielding of various mainstream recording devices, including mobile phones, recording pens, wireless/wired eavesdroppers, 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 products is generally 50-150, and the effective shielding angle is 90-120-deg, and there will be some differences for different recording devices.
