Amazon Echo is a voice-controlled interface which uses Alexa. Through the wireless network it can control plenty of features in your home, like to turn on/switch of the lights, switches, thermostats, to listen to Amaxon music unlimited (much like Spotify). You can ask it questions and get news or sports updates, it can be used as an alarm and much more. The device can easily be used by anybody. This device can even pick up your voice whilst playing music. It is possible to purchase things by voice (as long as you have an account with Amazon).
Like a smart Phone the device is constantly learning and improving and adding new skills.
Se also www.youtube.com/watch?v=OZ6dIPlZc3I&list=RDQMnUPc0uZJIa8&index=6 (last checked August 2017).
The user lives in England. The device is not available in Sweden yet.
Amazon, www.amazon.com (last checked August 2017)
This tip is from 2017