The "UltraSonic-18-Pult" voice recorders suppressor is a device that blocks the possibility of audio recording to any sound recording devices, such as digital voice recorders, mobile phones, smartphones and tablets. Due to the impact of ultrasonic radiation from the built-in speakers on the microphone membrane of the recording device, the recording will be damaged and unusable.
Ultrasonic emitters are covered with acoustic fabric, which gives the device the appearance of a regular music column that will not attract the attention of unauthorized persons. The suppressor is switched on and off remotely using a radio remote control. The suppressor is equipped with a battery and can operate autonomously for up to 3 hours.
Remote control included.Allows controlling the operation of the suppressor remotely, without attracting the attention of unauthorized persons. One remote control can activate several suppressors at once, and also bind several remotes to one suppressor (optional).
Disguised as a regular sound speaker. Ultrasonic emitters are covered with acoustic fabric, which gives the device the appearance of a regular sound speaker that will not attract the attention of unauthorized persons.
Autonomous operationmakes it possible to operate the device for up to 3 hours using the built-in battery, which makes the device mobile and allows using it in places with no 220 V network available.
The method of ultrasonic blocking of microphones makes it impossible to listen to and record human speech by voice recorders and portable devices with ultra-sensitive microphones. 18 miniature ultrasonic emitters of 90 dB each affect the microphone membrane, blocking its operation.
The effective range for blocking audio recordings is up to 5 meters, which allows protecting meeting rooms of small and medium sizes.
An effective angle of attack of 120 degrees allows you using the device in small rooms during negotiations successfully.
Display of ULTRASONIC emitters
(they are actually closed)
Power connector and power button
The level of ultrasonic signal at a distance of 1 meter - 90 dB;
Remote control range: up to 10 meters
Effective angle of ultrasound attack: 120 degrees;