Cobblestone is a Wi-Fi audio receiver that allows you to stream your favorite music services to your sound system from your smart phone and tablet. with multiple Cobblestones you can synchronize music play in all areas of your room or create different music environments in each room all from your smart device. MUZO player app on your smartphone and tablet allows you to control music all in one place. Supports airplay, DLNA, pandora, tuneIn, spotify (Beta), iHeartRadio (Beta) and more.