No one said you have to have a Roku remote, in fact most of this thread is me getting to the point this ISN"T a roku device AT ALL!!! This is Roku forum, we deal in Roku devices, a non-Roku Onn soundbar in a blue box isn't one of them. So do google search by the soundbar's model number, not simply roku soundbar, onn soundbar, be specific!! See if you can find a way to turn off the notifications.
Roku Community Streaming Expert
Help others find this answer and click "Accept as Solution."
If you appreciate my answer, maybe give me a Kudo.
I am not a Roku employee.