A quick review of Amazon's new Echo Dot 2  (2nd Generation) with a comparison to the Amazon Echo and some home automation. I have the Echo and Echo Dot working with Samsung SmartThings and Nest Thermostat. I also compare the Echo Dot 2nd Gen to the Echo. The New Echo Dot works very well for playing music since it has an aux port. If you ask Alexa to play music, by default it will play from Amazon Prime Music but it also works with Spotify, Tune-in and a few other music services.