By downloading the Sonos app and follow the instructions is easy. Put your speaker wherever you want. Plug it in. Tap the app. It connects to your WiFi and then you’re ready to play. For everyone in the house, and all their devices—smartphones, tablets, and computers. Now you’re ready to set up your Sonos and start streaming music. When friends come over they can download the app and play.The Sonos app helps you quickly search through all your services to track down favorite music, send it to different rooms, and adjust the volume and other settings. You don’t even have to be in the same room. And if your friends have the Sonos app, they can do the same.