A:Answer Hi There,
You do not need to have an additional Echo device for this to work! If you do, you can tie it into your multi room music set up if you have one, you can also broadcast announcements to other Echo devices from it. This device is perfect for the hard to reach spots that you wish you could have Alexa. A hallway for example where there is no table. You can optionally add a night light or motion sensor on for added productivity. The bottom of this device also has a USB port to charge devices.
Have a great day!!