It’s called the Esteem Hearing Implant which you can learn about HERE. It’s an implant that goes into the skull above the ear and it has two micro-wire probes that are injected into the nerves inside the ear canal. It’s FDA-approved and it uses bone conduction to enhance hearing (sound waves vibrate off the bones of the skull, and the wire probes send the signal directly into the ear, basically). It’s wireless and it’s controlled by the push of a button, so the user can turn it on and off with a little device… that fits in your pocket.
https://www.leagueofpower.com/heres-...-teleprompter/