A quality / excellent price. Everything worked without any trouble .The two keyboard and mouse rather ergonomic elements are perfectly fonctionnels.et sufficiently precise. The dongle connected to my computer, I have a choice, thanks to switches, to use one and the other. The advantage for me to use a real keyboard when I want because I am a person who writes a lot of text (God knows it is not practical with a laptop) and the mouse without son: Eliminate cables course !