| Frequency Range: | 20Hz---20kHz |
|---|---|
| Frequency: | 20Hz---20kHz |
| Application: | Conference Center |
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Recording Shield is a highly integrated high-tech security product developed by AL ASAR TECH. When a criminal uses a recording device (such as a mobile phone, voice recorder, recorder, etc.) to record you, the recording mask produces a random noise signal that can suppress the interference of the voice signal, so that the recording device can only pick up Noise information, and can not distinguish voice information, thus ensuring the security of voice information.
1. Supporting the shielding of various mainstream recording devices.
2. In the working range of the shield, the original voice information can not be heard from the recorded information by recording equipment.
3. Within the scope of the shield, the original voice information can not be restored from the recorded information by recording equipment.
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.
| Item | performance parameter |
| Shielding type | Mobile phones, recording pens and other sound acquisition devices |
| Shielding distance | 2m (shielding distance of different recording equipment is different) |
| Function angle | 90-120 degrees |
| Opening mode | Key switch |
| size | 280*110*150mm |
| weight | 1.8kg |
| ambient temperature | -40ºC~55ºC |
| relative humidity | 35~85% |
| Battery capacity | 2200mah |
| Charging input | AC 100V~240V |
| Charging output | DC 12v 1A |
| Packing instructions | Protective box |
Place of application:
Meeting room, office, confidential war room, negotiation room, counter window and other scenes to prevent illegal recording.
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