Depends upon which Roku you are using. If it is a Roku Ultra then yes. Other Roku models use an IR remote. Roku Sticks and the Ultra use RF. Which Roku model do you have? Usually if it takes AAA batteries it is an IR remote. If it uses AA batteries it's an RF remote.
What's the model number? All current models will support the Voice Remote. Some come with it, some don't, but still support it. Of the current lineup, only the Express and Express 4K come with the Simple Remote (IR), but both work with the Voice Remote. If you have an older Express, it might not. So the model number will tell us if it's compatible.
Settings > System > About
DBDukes Roku Community Streaming Expert Note: I am not a Roku employee.
If this post solves your problem please help others find this answer and click "Accept as Solution."