I just setup my Roku Voice Remote Pro. It turns the TV on/off and controls the volume BUT, it will skip numbers when turning the volume up or down. For example... When I hold down the volume up button I will see the volume increase like this, 2 3 4 5 6 7 10 14 20. Volume down would be like 16 15 14 13 12 11 8 3.
There is also a "delay" when doing volume up/down. (not sure what else to call it) Using my previous example of doing the volume up... I would let go of the volume up button when it got to 10, but it will still go up to 20 (or more).