The Era 100 was also the first non-portable Sonos ... Along with the mute switch on the rear is a Bluetooth button for putting the speaker into Bluetooth mode. The USB-C line-in port lives on ...
The Era 100 is slightly larger than the speaker it replaces ... On the rear, you’ve got a Bluetooth button for pairing devices as well as a mic mute button which is a pre-requisite for Amazon Alexa ...