Portable anti-recording power chargers; Portable electronic jammer for microphones and audio recorders; Electronic devices for disrupting the audio and signal reception of smart speakers, voice control devices, IoT devices with hands-free activation and mobile voice assistants with built in audio speakers; Acoustic and vibroacoustic noise generators in the nature of sound transmitting apparatus; Electronic devices, namely, mobile phone recording shielding box based on ultrasonic mixing technology to prevent mobile phone recordings, a box with multiple compartments that multiple mobile phones can be placed at the same time; Smart speaker with anti-eavesdropping and anti-recording function has multiple ultrasonic probes inside, which can interfere with the audio signal by emitting ultrasonic waves of different frequencies, so as to achieve the function of anti-eavesdropping and anti-recording; Ultrasonic probes, other than for medical use; Detectors used to find cameras by analyzing optical features; Detectors used to find cameras by analyzing electromagnetic features; Apparatus for the remote control of multiple ultrasonic interference devices; Downloadable computer programs for network management; Recorded computer software for use in inspection systems, detection devices and monitoring devices; Recorded equipment management software system for security screening sources, namely, sensors and transducers, computing machineries, and other electronic devices; Recorded computer operating programs for managing security screening sources, namely, sensors, computers, and other electronic equipment; Recorded computer operating programs for use in inspection systems, detection devices and monitoring devices