when I bought the keyboard and mouse set, it served well. The components are processed stable enough, there were no interference with other devices on. However, the major shortcoming seems to be the little receiver who simply stopped working after a few weeks with me. Although recognized the computer the recipient in Device Manager, informed me, however unequivocally that the device has a problem. I checked through all the USB ports of my computer, have to exclude all doubt the batteries in the mouse and keyboard replaced with new ones, and even the receiver tentatively plugged into another computer, even here no function and the same problem was. Who turns here to customer service, has no luck: there is no possibility at Trust a spare receiver to order and therefore only gänzliches Information Exchange is possible. It may be that only me this problem has happened and that I bought with great luck a defective product among thousands. That there is no way, however, to buy a replacement receiver, is a problem for only the manufacturer is responsible. So I advise clear of Trust products from, access to proven prefer Logitech or other products, who are also to be found in the lower price range.