I have done that one. So first you need the musicast app on your phone or tablet. Then you can follow the instructions. However, be aware that when they link up, the lip sync delay will be disabled so they can play together. To re-enable lip sync delay for normal home theater, you have to do that from the app. If you didn’t notice, default Yamaha lip sync delay is 40ms or 42ms (necessary for 4K video to sync with audio).