Smart plug, as the most popular smart home product, make normal home appliance turn into smart appliance, is not a fresh thing. Since it is an intelligent product, which means we can control it via phone APP to turn on/off power automatic according to the setting. What's more, if you have an Amazon Echo, you can rule your home via voice via Alexa. It is recorded that Amazon Echo smart speaker sold more than 6 million in North American in 2016, which means six families have an Echo in every ten families in North American. You only need to speak “Alexa”, and then you can make an order over 100 applications which connected with Alexa, such as playing music, search online information, on-line shopping, run smart home products via Echo. So what smart home product works with Amazon Alexa? In general, it includes smart aroma machine, smart plug, smart switch, smart light, smart air purifier, smart doorbells and windows, and so on.