Cheers guys, This is the best keyboard and mouse combo at this price. I have been using it for over a year. It works fine in the beginning and eventually condition starts to fade. First scroller went crazy, automatically scrolls up and down. Then keyboard and mouse stops to work suddenly for sometime. I thought it was battery issue since i haven’t changed from first time. But even though i replaced new one these problems keeps coming again. Even my friends has the same keyboard and mouse, as i recommended it to them. They too have reported the same issue. So i guess this product is not for you if you are expecting for a long run. I have rated it 4 stars since it worked well during the first year as i expected , even for gaming.