[@Savo]

I'm thinking act 2 is going to be based more around manipulation of frequencies, giving it supportive utility like jamming communications, or  support such as giving other Stand users additional punches per second for h u g e damage beatdowns. She could probably use this on herself, but I don't think she's comfortable getting that close to an enemy user because she's pretty defenseless. Sometimes offense is the best defense though.

And I can totally see her just grabbing the amplifier by the handle and whacking the shit out of a guy with it as a beatdown with ACT 1. >.>