C687 The Unlucky Happy Sheep

Li Zhi suddenly remembered that this should be a positioning system similar to that of a bat's, it would emit electronic waves from the radar before rebounding back. For this kind of equipment, although it might not be useful for Hui Tai Lang to create by himself, if it was used on the Grand Shang's combat equipment …

With that thought, the way Li Zhi looked at Hui Tai Lang became different