Connect to your stereo, Smartphone dranhalten, music players start to finish (NFC must be enabled on the smartphone, of course). So it must be. No complicated setup just because. Even Bluetooth is activated automatically in the Smartphone. What more do you want? Well and here we are. At the 'only' 4 out of 5 points The output of the part is a bit quiet. I have my smartphone already at full volume steles by approximately the volume of the other components HiFi reach. Of course I hann the loose at the HiFi system offset when switching to another input it will then be quite noisy. Not at that table but disturbing and be perfect for 5 Punkemuss one thing for me, sorry.