How is the contact of the headset and where to buy?

Remembered that I saw somewhere 1 or 2 years ago in the transfer of News is Not as this leading it specialist attended another exhibition and visited there the headset of the future. For means hand piece device and says that the bones in the brain receives music from the "inside" without there headphones. So what was this thing and already need to sell it or not?!
July 9th 19 at 13:16

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