章 602: Chapter 269 Technology Completion_3

```

After discovering the potential benefits the Mind Control Device might bring him, Yang Qi's face showed excitement, though he was completely unaware of it. He asked, "How should this Mind Control Device be used?"

Yan Fei himself had never used the Mind Control Device, so he couldn't guide Yang Qi. However, by looking at the shape of the device, it seemed it should be worn on the head. He said, "First, put it on your head."

So Yang Qi put the Mind Control Device on his head. Yan Fei checked the device and noticed a red button on the side. He helped Yang Qi press the red button and saw it immediately turn green, while Yang Qi's body stopped moving.

Then the Auxiliary Brain sent an inquiry to Yan Fei: "The authorized user has activated the Mind Control Device. Do you wish to open up the Technology Analysis System and all the knowledge on the Technology Tree to the user?"