The WeMo Mini Smart Plug lets you control whatever device is connected to it - such as your lights - with Alexa voice commands.
Unfortunately, it doesn't seem that third-party Alexa-enabled devices will enjoy the same functionality, which is common for some of the Echo's best features.
Amazon is releasing the new Announcements features to Echo users in the United States and Canda today, support for more regions will likely follow.
Just in case Amazon didn't dominate the entry-level smart home enough, it seems it also has its eyes set on making Alexa-controlled lamps your lighting of choice in the home.
Amazon believes that "millions of customers" use multiple Echo speakers in their homes. The feature will work with any compatible Echo device, including the Echo, Echo Plus, Echo Dot, Echo Show, Echo Spot, and Echo Look.
Amazon's Fire 7 and Fire HD 8 tablets can now pull double duty as hands-free Alexa speakers. However, the message will still only be transmitted to the smart speakers, not including the Alexa apps on mobile devices.
The "Announcements" feature can also be activated by saying things like "Alexa, tell everyone..." or "Alexa, broadcast..."