More concerning is the possibility of interference with medical devices, especially implants. It's not just a "may cause harmful interference" problem either: M

More concerning is the possibility of interference with medical devices, especially implants. It's not just a "may cause harmful interference" problem either: Many cardiac implants have an emergency shutoff feature which is actually intentionally triggered by placing a permanent magnet over the skin where the implant is located. Don't get me wrong - wireless charging is great, and provides a great deal of convenience, but it may be wise to reconsider the placement of large magnetic fields in publicly accessible places. We wouldn't want some person walking down the street to suddenly become injured just by walking past one of these chargers.