Before I tried the more expensive G500, which has but gepiepst strongly audible. This was unbearable and the more satisfied I am that the G400 this deficiency has not.
Much can not say what is not already in the product description for the mouse. They do exactly what they want, is precise and slightly rougher surface than the MX518 I find also very good. Only the cable seems to me a little too thin, that were with the MX518 much more robust. However, it works fine for a few weeks, so I have nothing to complain about it first.
If the cable does make unexpectedly early limp (despite careful handling), I'll adjust the review accordingly.