"Founder of the X-Men, Professor Charles Xavier is considered one of the world's most powerful telepaths. In fact, until recently he was considered an Omega-level mutant - one with no limit on his telepathic powers."
https://www.msn.com/en-us/health/fitness/x-men-comics-give-professor-x-a-new-power/ar-AA12yNRv
"Cerebro (Spanish for "brain") is a machine used by Professor X to amplify his telepathic ability in order to observe all the mutants and humans throughout the world. In turn, Cerebro can also be used to locate any individual as well. It is located at the X-Mansion in the subbasement."
https://xmenmovies.fandom.com/wiki/Cerebro
"In the middle of the room, there was a podium-like area which contained an interesting device. The scientists speculated that it might have been a device to enhance various cerebral functions."
https://themillenniumreport.com/2014/09/alien-base-for-giants-discovered-in-the-bucegi-mountains/
"the "Montauk Chair," a piece of furniture that used electromagnetics to amplify psychic powers."
https://www.thrillist.com/entertainment/nation/stranger-things-true-story-montauk-project-philadelphia-experiment