It means the microphone is turned off and Alexa can't answer any of your commands (and no one can hear what's being said). I leave my microphone off until I need to ask Alexa something (like set a timer, etc.). Yes, there is no problem with turning it off at night or if you are away from the house.
Amazon - Alexa Internet, Inc. is an American web traffic analysis company based in San Francisco. It is a wholly owned subsidiary of Amazon. Alexa was founded a... more
