+ They can be simply a stöpslen and LOS, no installation required, for me, another big plus.
+ The colors are easy to move with a button.
+ Between Blue, Red and Purple can be changed, or you simply do it completely out.
+ It is a very comfortable writing, the keys are not very loud, unless you hammering course like crazy on it.
Am fully satisfied, have so far not been discovered yet negative. If anything turns up I will add it.