Welcome to the Roku Community, @Dreamier.
Thanks for the question regarding the compatibility of our Roku Wireless Subwoofer to a Roku device.
Please be noted that a Roku Wireless Subwoofer does not work with Roku TV only, or with Roku streaming players. It is designed to connect with a Roku host device such as a Roku Streambar, Roku Streambar Pro, Roku Smart Soundbar, or Roku TV when Roku wireless speakers are connected. It cannot be connected directly to your TV, or an existing sound system.
For full information on this, you can take a look at this link: What is a Roku® Wireless Subwoofer? | Official Roku Support
Let me know if you have any other questions, and have a good day!
Kind regards,
Mary
Mary F.
Roku Community Moderator
