I th I think the there wasn't too much difference in the cost , that that related to the actual buttons , but it does affect the printed circuit board. Um which is the next section. Basically for the circuit board which is the middle , it's just  see it down there the chips like the like the workings of the actual um of the remote.
Mm-hmm.
The firm supplies a simple , a regular and an advanced um circuit board. And there's different prices according to each. So if we've got the scroll wheel for one of the buttons , that would require a slightly more advanced circuit board than if we just had a standard um push button.
Mm-hmm.