I mostly use the speakers with the optical input. Occasionally, I also listen to music (including radio) via my iPhone 8, which works without problems. Unfortunately, I could not find out whether the speakers support the A2DP standard. Since the abbreviation A2DP stands for "Advanced Audio Distribution Profile" and this has been supported on the iPhone since iOS version 3, it can be assumed that the Edifier R1280DB speakers support this standard. After all, they are built specifically for audio...!
At this point I would like to point out, as I did in the review, that the remote control is one big disappointment. It is of absolutely cheap quality. I therefore rarely use the remote control and use the controls and switches directly on the right speaker to switch on/off, adjust the volume and select the input channel.