Sonos Multi-Room Music System - Manual (Page 167)

Chapter 7: The Sonos® Controller 7-7
Mute
Temporarily silences the music in a zone (within a zone group, the mute
button automatically mutes the last room where volume controls were
adjusted.) Press the Mute button again to unmute.
Mute All
To mute all zones in the house, press and hold the Mute button for 3 seconds.
To unmute all zones, press and hold again for 3 seconds.
Sensors and indicators
Light sensor
Automatically turns on the button backlights based upon the lighting
conditions of the environment. You can adjust the brightness of the buttons
or the display by selecting System Settings>Controller Settings from the
Music menu.
Wireless signal strength indicator
Indicates the current strength of the Controller’s wireless signal.
Battery charge indicator
Indicates the Controller’s remaining battery charge.
Battery status indicator light
Alerts you to the status of the battery charge:
• Lights red when the battery gets low, indicating that the Controller needs to
be charged
• Lights amber while the Controller is charging
• Lights green when the Controller finishes charging
• Unlit when your Controller is in use and the battery is charged