Hear you can see a teardown of an implant. https://youtu.be/sNW3Xqtgkus?t=708 https://youtu.be/sNW3Xqtgkus?t=708 Here is a reed switch which has a sole purpos

Hear you can see a teardown of an implant. https://youtu.be/sNW3Xqtgkus?t=708 https://youtu.be/sNW3Xqtgkus?t=708 Here is a reed switch which has a sole purpose of stopping the device in presence of a magnet.