For folks asking about distance skin conduction at acupuncture points, this is a very old and crude 1990s device I built. I can transmit a clear HiDef voice up to 3 miles with no device on the user—just their normal body. Ethical and only permission based V2K. Only.https://twitter.com/BrianRoemmele/status/1171879819446894592 …
Jay, thanks for asking. This is a huge open area. I have found that there are cases where the microwave carrier can do this with some forms of deafness. I have done some research with microwave carriers but only on myself for reasons.I would love to see it studied and would help.