Aluminum cones, so they're
really, really, like, sonically NEUTRAL.
Breaking Bad Season 4, Episode 2
You know, if this experiment is going to
be valid, I suggest a NEUTRAL environment.
The Big Bang Theory Season 10, Episode 4
if we should have met him
at a NEUTRAL location.
The Big Bang Theory Season 7, Episode 14
Nothing's going on.
Neutral zone is quiet.
Breaking Bad Season 5, Episode 9