Stealth-Boy

The Stealth-Boy is Pre-War consumable tech item that allow the user to briefly go completely invisible by using a harmless but radioactive "cloaking field".

The most common variant of the Stealth-Boy are the Mark 1's, which has two distinct variants; being wrist-mounted or belt-mounted.

They both function identically, and usually burn out after a single use because many Wastelander's are unfamiliar with the delicate instruments. Technologically adept few are able to use it more efficiently, knowing how to adjust the device multiple times as well as reload it with fresh energy cells before it eventually burns out from repeated use.

Nightkin are Super Mutants that have become addicted and schizophrenic due to decades of prolonged use, this has turned their flesh a unique blue and has warped their minds beyond repair.