The FZ-JP1 and FZ-JP1X both share the same exact shell. The JP1 being the first model released, packed-in with early launch FZ-1 systems, had D-pad issues. This issue would be worked out internally, then a sticker renaming the controller model to “JP1X”. When the sticker is peeled off, you can see the original JP1 model behind it. Though, later JP1X models (like the one pictured with the red box above) would NOT have this sticker renaming the model. It would instead have the JP1X model molded to the housing.

Pictured in the following order: Pack-in JP1 back, pack-in JP1 front, Sticker variant JP1X w/box, sticker variant w/sticker removed, remolded JP1X model w/box