3920 is the latest Roku Premiere, released in 2019. It only supports an IR remote. You can get an official Roku IR remote, or you can get an inexpensive universal IR remote locally -- just be sure it says it can control Roku.
Roku Community Streaming Expert I am not a Roku employee, only a user like you. Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X | Streaming Stick 3600
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