Looking for an auto attack mod.

[Kahshani]

I'm trying to learn to how time my CAs between my auto attack swings so I can get the best out of my damage. I heard that there was a mod available that made a warning sound as the swing timer went off, but I haven't been able to find it or even have an idea as to what it might be called.

Does anyone know of this mod, or a similar one, that could help me? Thanks!