A streaming device isn't complete without a remote. Sure, many brands allow you to use a mobile app as a replacement for your remote, but nothing can beat the simplicity of a dedicated controller ...
If you're upgrading to a new Roku, or need to replace your remote ... usually found in the battery compartment. You can use that button to pair your remote to your Roku player or TV.
If it still doesn't work with fresh batteries, manually reset the remote, which will re-pair it with the player. How to replace your Roku remote if it's lost or broken — with a guide to every ...