WHAT DOES BLUETOOTH SPEAKER WITH MICROPHONE SM MEAN?

It's a smart speaker that connects with Wi-Fi, Bluetooth and Apple AirPlay. It is possible to pair the Transfer 2 with other Sonos speakers in your home to make a broader sound system. Plus you can use the Sonos line-in adapter (offered separately) to connect it to other audio resources like turntables, making it extra flexible than our other top r