[Arthur leeeeeeans back a tad, eyes wide and darting off to the side for a moment, but there is no one to save him! Not that...well, you know, this is probably just a totally normal social interaction and Arthur's doing an Arthur.]

W-well, it's, uh...I mean, some of it's pretty simple. Like, this is the mechanism that makes it pop open if you press the button. Or, uh, throw it. At a Pokemon...apparently.

[He guesses???? He presses the button to show, though - the ball is kinda disassembled, but a piece of it still moves when he does.]

And then there's, uh. A magic pocket dimension thing or something? I think this - [Indicating a different bit.] - is the part that talks to the PC, but I dunno about any of the rest of it.