“Microphone off button – Engaging this button enables or disables the Echo Dot’s microphone and prevents the device from 'listening in'. The light ring will turn solid red to indicate that the microphone has been disabled. If the user has the  optional remote control for Echo Dot, voice commands through the microphone on the remote control for your Echo, you can still issue voice commands can still be issued through the microphone on the remote control even when Dot's built in mic has been disabled.”