Are "balance and harmonisation" exact enough terms that you can disprove them? Can that sentence even be called a technical or medical claim considering how vague it is?
Vitaminwater has some drink called "balance", would that fall under the same thing? They also have something called "revive" but I don't think you can call it illegal just because it won't revive people from death.
Well, it does claim a specific noxious agent it does something against. Much like you couldn't say something balances and harmonizes your body against cancer or say heavy metals when it does not do such a thing.
Neither "balance and harmonisation" or "imbalanced electric radiation" are precise enough terms to disprove I'd think. Then again, I'm in no way an expert on quack healing devices or RF engineering.