In the realm of spy thrillers and covert operations, the idea of an ultrasonic anti-recording device often takes center stage. These devices, purportedly able to emit high-frequency sounds undetectable to the human ear, are said to scramble audio recordings made by common electronics. The question arises: does this technology truly work as advertis

For those seeking to secretly capture audio in situations, covert surveillance offers a range of sophisticated tools. These devices, often implanted, go unnoticed into the surroundings, enabling you to intercept conversations without being detected. Whether it's surveilling rivals, covert audio surveillance provides a valuable method for those in n

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