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Audited Supplier When the recording muffler is recording, it will generate random noise signals, which can produce suppressive interference to the voice signal, so that the recording equipment picks up only noise information, but cannot distinguish the voice information, thereby ensuring the safety of the voice information. The audio information in the captured video also has the same interference effect. Because the noisy ultrasonic noise is randomly generated and cannot be restored, the audio after being interfered cannot be restored.
Give yourself a safe private space and escort the security of state secrets. The FPGA-based ultrasonic band noise algorithm can effectively interfere with digital devices such as mobile phones and voice recorders, can record noise in, and completely eliminate the harsh sound that a few people can hear. Widely used in: confidential meeting rooms, public security bureau petition center, procuratorate reception hall, courts, negotiation rooms, offices and other places for private conversations
During the working process of the recording jammer, random interference signals will be generated.
The signal is generated by a high-security algorithm, which can ensure that the original voice information cannot be restored from the recorded signal.
The interference signal interferes with the recording equipment without causing harm to the human body.
After the interference signal is picked up by the recording equipment, it will cause only a piece of buzzing noise in the recording signal and it is impossible to distinguish the normal sound signal, so as to achieve the purpose of protecting the voice information.
| Item | performance parameter |
| Shielding type | Mobile phones, recording pens and other sound acquisition devices |
| Shielding distance | 2-3 m (shielding distance of different recording equipment is different) |
| Function angle | 90-120 degrees |
| Opening mode | knob control |
| Power adjustment mode | Stepless adjustment of knob |
| Host size | 155*95*29mm |
| Expander size | 95*59*23mm |
| weight | 350g |
| ambient temperature | -40ºC~55ºC |
| relative humidity | 35~85% |
| Battery capacity | 2200mah |
| Charging input | AC 100V~240V |
| Charging output | DC 12v 3A |
| Packing instructions | Protective box |
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