I am also starting from the Logitech quality! Had previously been a small laptop mouse for this manufacturer, has for years held before they gave up the ghost. All the more disappointed I am by this model, of course, it looks nice, but from the beginning delays in the reaction, the click of the keys is very loud and happy depends on the tablecloth because apparently underground is not smooth smooth! Quite honestly, prefer to invest a few euros more and take another, they can not recommend clear and goes back again. Logitech pity that you're not used to from you ...