3 sets in 2 years ... no comment
I still do not know why I continued purchasing it but I did it, not once, not twice but 3 times. Everytime, same problem, mouse is no longer working. In 2 years (in fact, 20 months) I purchased it 3 times, and what is frustrating is, when the mouse no longer works, it makes no sense to keep the keyboard and connect another mouse to an additional USB port as I need to use them ... at the end of the day, waste of monney, but also waste of plastic. That product is really great when it works, no doubt, but tomorrow, I will again have to go and buy a new set, but this time I ll pick something else.