The sound bar contains a Roku player built into the box, while the speakers are designed to work with a Roku TV (not a player). Two completely different products, and if you don't have a Roku TV the wireless speakers won't work. However, I believe the speakers will also allow streaming from a Bluetooth device, so that might be worthwhile for some users. But they are useless for a Roku player.
Dan
Roku Community Streaming Expert
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