This answer applies to R4 Mk3
R4 Mk3 has a high-quality Bluetooth receiver built-in, so you can wirelessly stream your music, internet radio and other services such as Spotify and Apple Music to R4. The majority of Smartphone’s and computers now have Bluetooth transmitters built-in and it is simply a case of putting R4 into pairing mode and then selecting R4 as your playback device. How to do this is explained in more details elsewhere in our Q&As.
The second and slightly more complex option is to use an auxiliary device such as Chromecast Audio which will connect to either the line-in or optical input on R4. These devices connect to your home network and allow music to be streamed to R4 in a variety of different ways. With more than one Chromecast music can be played simultaneously from multiple devices creating an easy to manage multi-room system.
If not, please do not hesitate to contact us via our support enquiry form.