The effectiveness of detecting hidden audio recorders depends on the type of device and the method used for detection. There are various techniques and tools available for detecting hidden audio recorders, such as radio frequency (RF) detectors, non-linear junction detectors, and infrared cameras. However, the use of some detection methods may not be 100% accurate as the technology behind audio recorders is constantly evolving.
It is also important to note that in some cases, the size and design of the hidden audio recorder may make it difficult to detect. In addition, recorders which don’t emit any signal may not be detected by most audio or video detection devices.
Never forget that using hidden audio recorders for illegal purposes, such as espionage or blackmail, can result in severe legal consequences.