@Dminches1-
If your Roku has a menu item "Settings > Remotes & devices", it is compatible and will pair with any Roku Voice Remote model.
If you have insufficient control of the Roku to check the menu, this Voice Remote page contains a chart of which Roku models support a Voice remote:
https://support.roku.com/article/360010940514
Any newer models since this chart was updated should be supported as well.
But it's basically:
Roku Express/Express+ models 3900 or above.
Other Roku models. 3600 or above
All Roku TVs
You can check your model numbers via Roku menu path Settings > System > About.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
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Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X