Tech review: Amazon Echo Dot offers greatest hits in slimmer package

When I reviewed the Amazon Echo last July, I said I believed we were all going to have something like this in our homes in the future. After a few months of owning my own Echo, I'm convinced I'm right. The 180 Echo is a wireless speaker combined with a virtual assistant called Alexa. The Echo is finally getting everyday use in our house, but I found we don't really need all the Echo's functionality. One of the Echo's main features is as a wireless music player, but in our house, a Sonos wireless speaker system pipes music to several rooms.