Yu Ziqing crushed a Jade Scroll, indicating that the message was received, and very clearly.
To the west of Jinlan Mountain, hundreds of miles away, Yang held a cylindrical White Jade Magical Treasure, happily rushing back to Jinlan Mountain.
When the two Magical Treasures were placed together, Yu Ziqing couldn't help but give a thumbs-up.
In just a few months, Yang had managed to create it.
The cylindrical Magical Treasure was meant for broadcasters, while the Jade Tablet was like a radio.
Even though they were separated by thousands of miles, the sound remained very clear.
However, further testing was necessary.
The principle was not quite like a radio, but the effect was similar.
The sound received by the broadcasting Magical Treasure would return to a receiving center with the Seven-colored Gemstone at its core, and then pass to the Jade Tablet.
According to Yu Ziqing's estimation, using the Seven-colored Gemstone core for this purpose was indeed overkill.