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An average smartphone contains sensors that can detect any emissions of in wifi and infrared, as well as inaudible audio. While only a portion of what you descr
by Gargoyle 9y ago
An average smartphone contains sensors that can detect any emissions of in wifi and infrared, as well as inaudible audio. While only a portion of what you describe, it's not difficult to imagine an app that could recognize and warn of those things, perhaps even recognize specific devices in the room by their protocols.