I have tested the trackball and I must say he is very habituation needy. In applications it is to still use them, for example in play. World of Wacraft he is to put it mildly Sch .... Yes I know it is a habitual thing if it was not yet the poor connection to Enpfänger would be at a re-positioning of the device before tearing or jerky. I must say that I the receipient back of the computer in the USB port had, but I have a desk top made of glass and the computer is directly run under it and still useable connection Problehme. On the sofa, for example. was nothing. Therefore no use of for me, unfortunately. Thus he goes back even if I got it for a really good price of 35 euros. But for the processing and the good location in the hand I give even well-intentioned two star.
