Your multiroom app is not compatible with the iOS 13 software update so you can no longer connect speakers with wifi. I have 4 speakers so I need wifi (versus bluetooth) so they can all play the same music at the same time. In a Samsung chat room on your website someone actually posted a link on how the developer of the app can fi it so it works. There are LOTS of people complaining about this. Have been since December. Can you please fix the app? Or send me a check for the 4 speakers that I have that are now basically garbage?