Win10 preview version 9901 Cortana how to use

The advent of Windows 10 Build 9901 gives us the opportunity to see Cortana. Cortana, a smart assistant developed by Microsoft, is called Microsoft Xiaona. How to use Cortana?
In Build 9901, Cortana's appearance is more refined and the response is very fast. For this we intend to understand this feature in depth.

First, the "Hey Cortana" feature allows users to voice-activate digital assistants without having to manually trigger the app. The Build 9901 simply triggers the Cortana feature by simply issuing the “Hey Cortana” command and allows you to interact with the personal digital assistant and use all the features.
In Build 9901, all Cortana features are turned off by default, you can open them as needed.

Build 9901, all Windows Phone versions will appear on the desktop version of Cortana, such as notebooks, flight tracking and home and work location features. This version of Cortana has improved a lot in terms of features and appearance compared to the Cortana version we saw earlier this month.

Cortana, Microsoft's "revolutionary" assistant technology. It can interact with you and communicate with you as much as possible by simulating the way people speak and think.