
Posters of any bands were posted anywhere and if people don't know or not familiar with that band, they will just ignore it. But what if that printed poster posted on a wall or anywhere can play and you can listen a music? Will still ignore it?
Isn't it interesting that you can play a music by just printing it on a plain paper? That's what they call "Printed electronics". Well, if you think there's something special on the paper, then you're absolutely wrong. For it's the ink being used is the one which is having a special something. They called it as a "conductive ink".
unlike with the other ink from Lexmark, HP, Canon, Fujitsu, Brother...