Just got this phone today and after connecting it to my bluetooth headphones, I noticed that the sound bar keeps showing up whenever I do anything while they're connected. I could even be browsing Reddit and it will show up at the top of my screen for a few seconds every time I tap a photo. It also seems to reset the volume back to it's original setting each time as well.
Photo of sound bar: View: https/imgur.com/a/fiPR8zF
Photo of sound bar: View: https/imgur.com/a/fiPR8zF