The F-18 tissue box ultrasonic acoustic sound wave generator anti-recording guard. Emits ultrasound wave that interferes with microphones stopping them from working. Very effective on smart speakers, phones, tablets, voice recorders, listening devices and camera microphones etc. It eliminates voice recognition systems and overrides sound activation, audio recording, monitoring devices.
Simply place where sensitive or private conversation is taking place and switch on. It is remote controlled to switch on discreetly and sound activated turning on automatically when required. Designed to place in room / area where microphone is in use within 2-8 square metre distance. 360º coverage to stop recording or sound monitoring in all directions.
110v-240 AC mains powered via charger or battery power for 2-4 hours (charge time 3 hours).
Position as close to microphone and talk as far away from microphone for best result. The distance covered is 2-8 square metres over 360º coverage. Depending on many variables and different circumstances, its not 100% guaranteed to stop all microphones from completely working. It is very effective and 100% makes recording / listening extremely difficult or impossible. Making speech / voice unintelligible, unclear or completely unheard and blocked out.
With so many different types of microphones / variables and circumstances its impossible to stop anything and everything, no matter what. However used correctly and wisely it works really well. A mild hum can be heard by human ears when within 1-3 metre. Prolonged use and close exposure to ultrasonic sound waves can affect hearing short term.
The principle of this anti recording guard is to emit ultrasound acoustic waves to interfere with the 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.
