| Frequency Range: | 20Hz---20kHz |
|---|---|
| Frequency: | 20Hz---20kHz |
| Application: | Conference Center |
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The recording blocker is a safety protection product used to block illegal recordings and protect voice information. When criminals use recording equipment (such as mobile phones, voice recorders, bugs, etc.) to record illegally on you, the recording blocker can generate high-power interference signals whose sound power is much greater than that of voice signals, thus suppressing voice information Interference makes the recording equipment pick up only noise information, thus ensuring the safety of voice information. 
Good shielding effect
Uses an ultrasonic transducer array to output interference signals. The signal output power is relatively strong. It shields recording equipment such as phones with a long distance and a large angle. It is currently one of the best shielding products on the market.
Strong camouflage
Adopts the structural design scheme of air purifier, and its appearance is almost the same as that of ordinary air purifiers, and it has a strong camouflage effect.
Strong concealment
Uses the fan sound of the air purifier as a masking sound, which can reduce the impact of equipment working noise on human ears and has strong concealment.
| Item | performance parameter |
| Shielding type | Mobile phones, recording pens and other sound acquisition devices |
| Shielding distance | 2-5m (shielding distance of different recording equipment is different) |
| Function angle | 90-120 degrees |
| Number of transmitting terminals | 20 Launching terminal |
| Opening mode | remote control |
| size | 260*160*160mm |
| weight | 2kg |
| ambient temperature | -40ºC~55ºC |
| relative humidity | 35~85% |
| power | 120w |
| Charging input | AC 100V~240V |
| Charging output | DC 12v 10A |
| Packing instructions | Protective box |
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