Elgato Stream Deck MK.2 Hatsune Miku Edition Brand new, unopened. [Product Details] The Stream Deck, which supports a creative work environment, now has a collaboration model with Hatsune Miku. Elgato's iconic 15-key controller allows you to control apps, tools, and your entire streaming environment with a single touch. The combination of a blue-green faceplate inspired by Hatsune Miku and an icon pack drawn in pixel art expresses the world of Hatsune Miku.