They have advanced to a variety of tools, including Swords, axes ect. and Bows & Arrows.
Homo-Erectus individuals are easily distinguished from other species of Humanoid, their brownish fur being the easiest to spot feature. Their heads are also rounder then that of Modern Humans.
Homo-Erectus were one of the first Humanoids to live in a hunter-gatherer society, and primarily have stayed in such a society. They have advanced to having a rather complex language from their proto-language and have gained equally advanced technology.