The old man laughed: "Come on, come in with me, and tell me about your thinking. No matter how much I study, I still don't understand how sound is transmitted?"

After saying that, he directly grabbed Ning Qi's arm and entered the room, followed closely by Mengdulu.

As soon as he entered the room, Ning Qi saw a large jade table full of parts. If these parts were not wrong, they should have been dismantled from the technological products he had exchanged for Mundulu.