Portable Spirit Shield is a type of defensive Spirit Guidance Device that could be controlled from distance. One needs to be at least a Spirit Master of the fourth rank to control this sort of Spirit Guidance Device.
They seems to be balls of light suspended in the sky. When one needs them, they fly to protect the user. The higher the cultivation you have, more Portable Spirit Shields you can control.
Though the defensive abilities of the Portable Spirit Shield isn’t bad, it is better suited towards long-range attacks; in other words, it is better used to defend against spirit power. Its defensive capabilities against physical attacks aren’t very good.