Silent air purifier Recording Shielder Hidden Voice Recording Jammer
AAT-007mini-2 Hidden Recording Jammer is the latest product of Hidden Recording Shielder developed by AL ASAR TECH. The product is a vehicle-mounted air purifier with good concealment. It can be used in car or small conference rooms to realize recording shielding without anyone's awareness. It is also to realize the information security of voice. The product has remote control switch to open easily.
Item |
performance parameter |
Shielding type |
Mobile phones, recording pens and other sound acquisition devices |
Shielding distance |
1.2-1.8m (shielding distance of different recording equipment is different) |
Function angle |
90-120 degree |
Opening mode |
remote control |
Remote control distance |
>10m |
size |
184*115*56mm |
weight |
650g |
ambient temperature |
-40℃~55℃ |
relative humidity |
35~85% |
Packing instructions |
Protective box |
Functional characteristics
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 device supports the shielding of various mainstream recording devices,
including mobile phones, recording pens, wireless/wired, 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 100-150 mm, the effective shielding angle is about
90, and there will be some differences for different recording devices.
24hours Service Hotline
Tel:+86 0755-26606817
Mob:+86 13048814836
Email: info@alasartech.cn