It was created as an Xmas Present of 2005.
The appearance is standard case with a cover. But of course, you can't open it through only putting up the cover. "Just putting up" is wrong. If so, what way do you think it opens? Is this too big a hint? Add to this, when you touch the orange colored panel on top, you can find another device. Maybe it is difficult to see with your eyes. It's a box that has an opposite way to open.