Hao, the assistant, was a plump man in his thirties. He looked very friendly and nodded at Yu Xinyi when he heard her greeting: "Good evening, everyone is here now.",He said, then suddenly lowered his voice: "But, how true these rumors are, to scare away so many people, this factory definitely has something unusual. Your test tonight is to stay in the factory for four hours.",After powering on, only one-fifth of the battery power remained in the upper right corner of the camera. He fiddled with it casually and discovered that the camera had a night vision mode, which greatly facilitated their movements in the dark, although it consumed quite a bit of power.。