Um and the price that go with it with it , so the simple push-buttons are gonna be the cheapest. Uh if we get a scroll-wheel , that's a higher price range. If we get an advanced chip which is um used for the L_C_D_ , the display thing , then that's even more expensive.
Simple , yeah. Chip on print. It's a bit .  Okay , uh what I'm not understanding here
Mm.
is uh , okay , advanced chip on print , which I presume is like one P_C_B_ and that's got all the electronics on one board including the um infra-red sender ?