The Hub, a small stand alone box, works with the app to allow you to connect multiple speakers into a multi room system. By simply plugging the hub into your router and connecting via the app, you can connect, group and control your speakers to customize your music to fit your life. The Samsung SHAPE Wireless Audio System lets you integrate your music around how you live. Whether it?s a single speaker in one room, a multi-room system in two rooms or in every room in your home, it?s never been easier to immerse yourself in your favorite sounds. To connect all your speakers throughout your home, all that?s needed is one easy-to-use hub. You can play all your favorite tracks wirelessly and use all your favorite online music streaming services. The hub also gives you different modes of listening, including Zone Play and Party Play, letting you play tunes simultaneously on all speakers around your home or just in one room. All you need is one hub to bring your speakers, devices and music together.