I think it's improbable that the computer alone could hypnotize you "like the first test did". There are most likely all manner of things intended to hypnotize a listener or viewer there, but only the apparent prototype headphones could do it precisely the same way given its unique inputs. Indeed, in addition to the oddly-oriented short antennae that I suspect might be intended to monitor the wearer's brainwaves, I suspect that the so-called "static" you heard was actually derived from the rushing of your own blood in your ears; otherwise, why would the headphones have small microphones inside them?

Rather than trying to hypnotize you by any means yet, however, I believe the proper next step would be to discuss... what you just went through, and to compare and contrast it with the first test. A third test can wait until we reach a fuller understanding of the second.