Needs a lot of work.... I cannot use the volume controls on the phone to controll. There is an option to turn that on but it worked once and I couldn't get them to work again despite toggling on and off and uninstalling and reinstalling. Also, it's stops playing after one song if my phone goes to sleep. That is annoying because I always have to wake up my phone for it to continue with the next song. I will be returning my 4 Sonos Roam speakers for these reasons. There may be even more reasons.