A:AnswerThis specific soundbar, TCL ALTO 5+, features a subwoofer. This soundbar cannot currently be connected to additional satellite speakers or separate subwoofers. Hope this helps! Thank you, TCL Customer Support
A:AnswerI didn't read the directions but it seems like when you connect the optical cable and use your TCL Roku remote it syncs automatically.
The only time I use the remote is to toggle between the different sound modes...and then it seems like if you want to use blue tooth you have to use remote.
I will add it would be nice if TCL had of done a full size remote with the options to turn subwoofer off....but the sound of the unit fills up my bedroom with music videos from YouTube to regular TV programming. I think you will really enjoy this soundbar.