Ray is aware of the other man watching him work, but is mostly content to just let him watch until he says something, since he's not in the way. The proton pack itself is tucked safely under the bench, so it won't be stepped on; Ray would just wear it, but it does get heavy after awhile.

Hey looks up at the man's question though. "It's a proton-stream weapon designed to help capture ghosts," he says. "My friend Egon and I designed it. But it can get finicky when taken into realms with differing laws of physics, so I'm trying to adjust so it functions here."