The F-12 ultrasonic acoustic sound wave generator anti-recording guard interferes / eliminates normal function of all microphones. This includes microphones in smart speaker, smartphone, tablet, voice recorder, dictation machine, listening device, camera microphones etc. It eliminates voice recognition systems and overrides sound activation, sound recording, audio monitoring, eavesdropping devices.
Simply place where sensitive or private conversation is to take place and switch on. It emits acoustic ultrasound wave that overrides microphones nearby. Position wisely and talk away from suspect area for best results, not placed well can impact it effectiveness. The distance covered is 3-8 square metres over 360º coverage.
With so many types of microphones / variables and circumstances its not possible to guarantee 100%. If placed correctly and wisely no sound is heard on microphone apart from ultrasonic noise. Completely overriding all speech / voices in same room / area. When in use a mild hum can be heard especially if within 1-3 metres and not recommended for prolonged use. It is not recommended to use with pets / animals nearby as they are sensitive to ultrasonic sound.
The principle of this anti recording guard is to emit ultrasonic acoustic sound waves to interfere with normal function of microphones. Its core technology is an advanced algorithm and chip which generate and run ultrasonic sound waves targeting the transmission frequency of sound media. Resulting in 4 models of military grade ultrasonic generator anti-recording shield.
1. Anti-recording / anti-eavesdropping / Anti-listening device.
2. Easy to use: 5 output directions, two gears, shielding angle 360 degrees.
3. Working principle: Ultrasound acoustic wave interference
4. Application: meeting, Business interview, Personal communication, Confidential / private conversation.
5. Function: protect your privacy and prevent eavesdropping. Prevent phone voice recorder / prevent digital voice recorder / prevent camera audio.
Model F12 is designed to place in room where smartphone / tablet / suspect hidden recorder / listening device / hidden camera. It has 3-8 square metre range with 360º coverage and perfect to stop any suspect recording or sound monitoring. It has built in battery or can be powered on AC mains. Battery working time is 900 minutes (15 hours).
