The Sound Module of F-digital Deluxe turn your bathroom into an exclusive private home spa - an experience that touches all senses and leaves nothing to be desired, that seduces and strikes a chord, fascinates and inspires you. Relaxing or reviving? Select the playlist or album from your iTunes library that you wish to listen to in your GROHE SPA shower, the App enables you to adjust the volume of the GROHE shower speakers.