EVY1 module

History
The prototype of this device was seen in the "YAMAHA VOCALOID LSI "NSX-1" based Singing Keyboard" demo and more demos were also shown afterwards. This device used the voice of VY1 and initially this was the voice that was going to be inside the Pocket Miku device. After some negotiations, Hatsune Miku became the voice and was built using VY1's base as the developers argued that only Miku's voice would do.

Despite this, a version of the device was put up on show to Nico Nico Douga groups.