The Fire TV Cube is equipped with the same far-field voice recognition as an Amazon Echo, which means there are eight microphones inside.
The device should be able to pick up your voice without you having to shout over your TV.
But you can set it up so that the Fire TV Cube turns on your TV, and whatever else is included in your home entertainment set-up.
In the demo I got, the Fire TV Cube turned on the TV, a sound bar, PlayStation Vue, and the lights in the apartment all at once when it heard the phrase, "Alexa, I'm home."
When your TV is on, Alexa's voice will play through the speakers on your TV.
You can tell the Fire TV Cube to do things like, "Play an episode of 'The Crown.'" It will start playing where you left off.
You can tell the device to play, pause, fast-forward, rewind, or adjust the volume.
Alexa can also scroll through the options on various streaming services, switch inputs between streaming and live TV, or tune to a specific channel.
... or you can watch a video flash briefing of the news.
Amazon already sells two Echo devices with screens: the Echo Show and the Echo Spot. Both of those devices can handle tasks like this too, but the experience isn't great because the screens aren't very big.
But the Fire TV Cube simply uses the screen you already have in your home for tasks like watching movie trailers, viewing your shopping list, checking out your home security camera feed, or playing a game.
The Fire TV Cube will cost $120 and is available for preorder starting Thursday.
Amazon Prime members can get $30 off the Fire TV Cube through June 8. The device will start shipping on June 21.