The keys serve as pumps, pouring a different liquid with every letter. "Imagine that each letter can have a taste (L-Lime, A-Apple), a color (R-Red, G-Green), or a name (K-Kahlua, J-Jagermeister)," Morskoiboy explains on his website. It even has a large LCD-like (liquid cocktail?) display, which is illuminated using multicolored syrup. You'll have to watch the demo video to really appreciate this.