Well, just good quality of Logitech. Finally ne wireless keyboard with good key press, many times "useful" functions when you want and not have to change batteries every 4 weeks. The Logitech came along with Duracell batteries, and not the usual junk China. Well made and ergonomically. Installation? No ! Receiver in and there you go;) Am absolutely to peace. The mouse and keyboard go to Enerieersparnis into sleep mode and wake up immediately again. Smooth workflow is guaranteed. For the price you can not do nothing wrong.
