Sonos CR100 Controller Now you can have instant access to your entire digital music collection including all your playlists from anywhere in your home: inside or out. That's because the Sonos Controller uses Sonosnet our secure wireless mesh network that extends the range of your Controller throughout your entire home. Which means you don't have to run to your PC every time you want to turn on change or turn off your music. And you can control everything from volume to music selection in any room from anywhere. No other digital music system lets you do all that. Full-colour LCD screen and scroll wheel. High-resolution colour screen. Makes everything on the screen brighter and easier to seee. Including full-colour album artwork if available. Scroll wheel selector. Makes it quick and easy to scroll through large music collections and make selections. Power Scroll. Lets you scroll by letter to quickly find an artist album or track. Intuitive button layout. Provides complete music management and control. Two buttons are dedicated to providing direct access tot the controller's main menus (Music and Zones). Movement sensor. Automatically turns the Controller on when you pick it up. Backlit buttons and screen. Backlit buttons and screen make the controller easy to operate in low-light conditions. Adjust the brightness of the LCD and buttons to suit your style and extend battery life. Light sensor. Turns backlighting on only when necessary to conserve battery power.