"This device is called the [Echo Device]. If you're within 100 kilometers, communication is smooth; beyond that, it gradually weakens with distance, and after 200 kilometers, it's useless. So be careful, don't stray too far from the Oasis—just operate nearby. Also, if you encounter a catastrophe climate, the Echo Stone may also fail—keep that in mind."
The six items are all extremely crucial.
Lu Chenzhou put on the bracelet, slipping it under his Advanced Protective Suit.
He suddenly thought of something and asked:
"Is there electricity in the base?"
Shentu Youshan replied:
"There's basic electricity, so quite a bit of human technology can be used here. But wireless communication, satellites, that sort of stuff, we can't solve that for now. Telegraphs and such still work in the Oasis base and the surrounding area."
Once all preparations were completed, Shentu Youshan beckoned and said:
