If supported by your product, you can use the Bang & Olufsen app to change between the available sources as shown below: 

1. 1

   Access playback controls

   • Tapping the product name at the bottom of the screen offers multiple controls like play/pause and volume adjustment.
2. 2

   Access the source list

   • Tapping the "..." icon on the "now playing" screen will reveal the list of available sources for your product.