This app help you control all your Sonos speaker on your local network, you can use it to play/pause Sonos speaker, control volume, play local music file from your PC or XBox One. The App also support send URL to Sonos Speaker to play directly, include internet radio URL or stream local speaker. In-App Purchase Features: - Stream audio from Microphone or other Audio Input / Recording device connected with PC to your Sonos speaker wirelessly. If your PC/Laptop have line-in or Microphone port (you can also use external USB sound card/adapter with line-in or Microphone port with your PC), then you can use this feature to stream sound from that audio input/recording device wirelessly to your Sonos speaker, use case include: 1. Microphone sound wirelessly stream to Sonos speaker 2. Electric guitar or Piano line-in wireless stream to speaker 3. Connect headphone output to Mic-in or Line-out to Line-in to redirect all your PC audio to that recording device and wirelessly stream to Sonos speaker. (Please check your device manual to know which port you should connect to, the Microphone input and Line-in have different audio signal process.) * You need Sonos speaker to work with this App.