Indeed, not only was Bai Man equipped with EMP weapons, but he could also release EMPs in two different forms.
Humanity first realized the destructive power of EMPs on electrical equipment with nuclear weapons. The gamma rays released by a nuclear reaction would react with molecules in the atmosphere, creating a very strong electromagnetic pulse.
For those mighty beings with mini reactors inside their bodies, releasing a strand of gamma rays through a predetermined path was not so difficult, as long as the design was appropriate.
Bai Man could draw several strands of gamma rays from the Pseudo Star Device. To him, this was hardly more difficult than "breathing." However, due to the dense atmosphere at ground level, this EMP attack would only work within several dozen to a hundred meters around him.
But within these meters, prosthetic bodies with slightly inferior electromagnetic protection would be destroyed on the spot.