S4-Radio provides you with a group of worldwide broadcasting internet radio stations. Listen to best choice of international charts, hear your favorites in house and electro, start a journey to the decades of 70's, 80's and 90's or just tune in to on of the national based programs. In the app you could choose your preferred bandwidth. Either using the 48 Kbps stream when outside and connected to mobile internet or the 128 Kbps stream if WLAN/WiFi is connected. It's free for your choice. Both streams are in AAC+ for best quality. While you are listening to the selected station you could use one of the major social networks: Social-4 … the fair community, Facebook or twitter to stay tuned to the news from your friends. This app works optimized for iOS7, lets you select an air play device and continues playing when your iPhone is locked. So it delivers you a lot of fun with the choice of music for your mood.