The Google Home Smart Speaker assistant has a convenient new feature called Broadcast Mode. You can be anywhere in the world and send an audio message to your Google Home device.
For example you can be in the grocery store and ask, “Hey Katherine, do we need milk?” The verbal message is broadcast at the home and the recipient can respond. It almost feels like a walkie-talkie. Google Broadcast is an alternative to messaging. It is helpful when the recipient is away from their phone and when audio is better than messaging.
This is one of many smart home features offered by the Google Home device.