MDPB-S105 audio recorder jammers

• Measured Shielding Range of 1-5 Meters When a microphone is directly facing the shielder, the effective distance varies with different brands of smartphones and recording pens.

• Ultrasonic Interference Technology Based on the reflective properties of ultrasonics, this technology can interfere with the microphones in recording devices, rendering recordings ineffective. Additionally, it does not produce any buzzing noise.• High and Low Frequency Sound Source Mixing Utilizes a process that mixes high and low-frequency sound sources, blending the original recording signal with the audio signal from the shielder. This makes the shielded recording unrecoverable in post-processing.• Fully Autonomous and Controllable From design and manufacturing to production and after-sales, it operates under fully autonomous intellectual property rights. Completely self-controllable and reliable, meeting national policy requirements.• Convenient Charging Model The device features a portable charging design, offering high mobility and independence from any terrain constraints, allowing for flexible deployment in all scenarios requiring protection.• Multi-Angle Adjustable Independent Switches The device can independently control the switches of the four-sided combined emission terminals to meet the needs of different scenarios.