You need an app to listen to radio D2 Relax on your mobile device, because the player on a webpage like this one, will stop playing as soon as your device is in stand-by. You can use the Online Radio Box app (android or ios), or the MyTuner-Radio.com app (available for ALL devices).
Install the app, search for D2 Relax and press play. Or use one of the standard Media Players listed below.
This is your link to D2-RELAX: D2Relax.com/listen
On PC: choose open with and select your player by clicking 'other' if it's not the default player that shows up.
If you have one of these Media Players installed on your device (mobile or not)