I am happy with the purchase, the product corresponds to the description, very high quality. Switches own company a-jazz, but feels the same as cherry mx blue. Mouse with soft and quiet buttons, almost familiar but not a problem. Still, the mouse has a coating, but it does not slip very well compared to my logitech g502. In general, the mouse is usual good office. On the keyboard there is a rubber band from the bottom, on the table it stands as "dead". The keyboard can be used as wireless and by cable, but the mouse on the cable will not succeed. Keyboard and mouse have backlight. There are about 5 running modes. When used by usb, the backlight can burn constantly, wirelessly works when pressed and about 10 sec turns off after printing stops. Caps completely with black plastic. Engraving with the possibility of illumination (for your characters) is not possible, only factory characters will glow. The battery declared time withstands, even more. At the end of the purchase is very satisfied, i recommend. Seller sociable, delivery month The photo does not take a protective yellow film. Beneath it is chrome. Looks beautiful as chrome on the contour. And i also add that the keyboard was not so heavy.