It was surprisingly not that hard of a concept to grasp. It was unfamiliar, but not impossible. He had used a typewriter a few times in his life, and while a mobile phone wasn't an idea he had heard of, a mobile communications radio was. He had already figured out that was in some way what this smaller object was.

"Yes, I think so. What if the unit or person you are trying to make contact with is not listed here?" He was looking at the list of contacts with interest, fascinated by what Dick was showing. These devices were suddenly far more useful than his original idea of them.