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Now for the fun part!

Speakers are all well and good, but Alexa's true mouthpiece is the swivel-top volume control and light ring. Alexa acknowledges a voice command by changing the LEDs pointing toward you from blue to...lighter blue.

The volume dial contains the user-interactive bits: the top portion spins freely, using a greased-up gear to turn an encoder...

...which you can also control via voice command!

Pro tip: take the Echo out of its protective plastic covering before attempting volume level 10.

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