20MJ20 - Microphones Jammer

Disturbatori Acustici

Directional diagram- 60 degree angle in front of the emitters

Manual control- buttons and light indicators for switching on/off, noise and battery level

Remote control- switching on/off, range ~40 meters

Wireless remote control- 433.92 MHz frequency in the ISM (Industrial Scientific and Medical) band

+4 more features below

B2B pricing on request — contact us for a tailored quote.

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Description

The 20 MJ-20 is a highly effective ultrasonic jammer. It is designed to protect confidential information during meetings and conversations. It generates a unique ultrasound signal that blocks the microphones within the range of the device without interfering in the conversation. When turned on, the jammer virtually blocks the operation of any device with microphone and which are designed to record or transmit an audio signal. Such devices are: Mobile phones, dictaphones, audio recorders, wired and radio microphones used for eavesdropping, video and audio conferencing systems, GSM microphones, etc.

In order to improve the efficiency of the device, there are several unique solutions:

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Generating a special signal covering a wide frequency range and affecting different types of microphones.

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Operation on two different frequencies in order to increase the distance of impact and overcome possible measures to counteract the jammer.

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Ability to operate several devices in a room without going into antiphase, which would lead to periods of reduction or cessation of the jammer’s effectiveness.

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Control of up to 4 devices with one remote. The Ultrasound jammer is a set of two separate jammers that could work individually (separately) or synchronously. One of the jammers works at 25 KHz and the other at 33 KHz. Several jammers operating at 25 KHz only (respectively at 33 KHz) can be used simultaneously.

Each of the transmitters has a power supply, built-in batteries, built-in control buttons and remote control.

The jamming range depends on the type of the microphone and its design. The optimal microphone jamming is from 0.5 to 2 meters. Highly sensitive microphones can be blocked at 12 meters distance or more. These are the microphones of the top models of mobile phones from various brands. The transmitters can work separately as a stand- alone jammers. The best effect however is when they work together. Based on our experience however we would recommend using two

Features & Specs

Directional diagram- 60 degree angle in front of the emitters

Manual control- buttons and light indicators for switching on/off, noise and battery level

Remote control- switching on/off, range ~40 meters

Wireless remote control- 433.92 MHz frequency in the ISM (Industrial Scientific and Medical) band

Power supply- 220 V AC and 12V DC built-in accumulator batteries.

Working time with battery- up to 7 h.

Weight of one ultrasonic device with batteries – 0,9 kg.

Size of one device- 203x158x65 mm

Specifications

Number

1 pc, 2 pc