Effective product non-irritating and odorless

The first time I used it, I told myself that it was not possible: it had sold me a bottle with plain water inside ??? Indeed, no smell and the product is not irritating at all. But simple water would not have this efficiency.
Indeed, I can clean all screens with LCD TV, tablet, phone.
On the other-hand, with the supplied cloth and leaves no trace. I recommend (and would advise when I am no more, but there for a while).