After a year and a month of use, the supplied batteries of some unknown Chinese brand leaked in the keyboard, and the product for 4k came to an end. Be vigilant, immediately change to something decent. I can’t say that the late product was very comfortable (the design of the keys was planned by some extremely strange person, although the stand and the angle of inclination are just super), but the sensations when pressing the keys, softness, return speed are beyond competition. Protection against crumbs and dust too - nothing got inside. The mouse is great. Large, heavy, fits perfectly in the hand.
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