| Frequency Range: | 20Hz---20kHz |
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| Frequency: | 20Hz---20kHz |
| Application: | Meeting Room, Office, Confidential War Room, Negot |
| Jamming Type: | Mobile Phones, Voice Recorders and Other Sound Col |
| Shielding Distance: | 1-2.5m (Shielding Distance of Different Recording |
| Function Angle: | 90-120 Degree |
| Samples: |
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Suppliers with verified business licenses
Audited Supplier This recording shield is a new product in the communication recording shield. It integrates the functions of air purification and recording shield. The recording shield and air purification control have no influence on each other. Ultrasonic jammer Air purification is controlled by keys on the host computer. The recording shield is equipped with a separate remote control, which opens and closes, and protects its information security without any detection.Scene of application: Office, conference room, secret room and other places where recording is not allowed.
High interference intensity: Our self-developed 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. Long interference distance: The anti-recorder has an interference distance of more than two meters for 95% of mobile phones, an interference distance of more than 5 meters for 60% of mobile phones, and an interference distance of 1-2.5 meters for mobile phones, which can be effective Protect the content of the conversation.
| Item | performance parameter |
| Shielding type | Mobile phones, recording pens and other sound acquisition devices |
| Shielding distance | 1-2.5m (shielding distance of different recording equipment is different) |
| Function angle | 90-120 degree |
| Opening mode | remote control |
| Remote control distance | >10m |
| size | 260*145*145mm |
| weight | 1.5kg |
| ambient temperature | -40ºC~55ºC |
| relative humidity | 35~85% |
Suppliers with verified business licenses
Audited Supplier 
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