If you use SteamVR™ Tracking for your Varjo headset, you can also use SteamVR™-compatible controllers. Note that SteamVR™-compatible controllers will not work with other tracking methods.
Controllers can be paired with your headset using the SteamVR application. If you have previously paired your controllers with another headset, you will need to pair them again with your Varjo headset. To launch the pairing process, navigate to the System tab in Varjo Base and select Pair SteamVR device.