The Amazon echo is a Cool device made by Amazon
Really?  What can it do?
You can have it play music, get the news, check the weather, make lists, play audio books, and much more
Wow, that sounds awesome!  How much do they cost?
There are a few different models and they can range in price, but most are around $100
That's not bad.  They work on wifi, right?  I'd have to get a router?
They work over wifi by saying the name alexa to wake it