Hello everyone. I have a question about the article 36059699 (wireless keyboard incl. mouse 'MK370 Combo for Business'). It is important for me to have a keyboard with the umlauts (ä, ü, ö)! When I look at all the photos of this item, I realise that one photo shows these umlauts, but another photo does not contain them. Tip: If the letter 'Z' can be seen on the lowest keyboard layout on the left, the keyboard does not have these umlauts. Thank you very much in advance for your reply. Kind regards Roger