Excerpt: I was given this gray A4Tech optical mouse as a gift by my Uncle last Christmas. At first, I was quite disappointed because, hey, a mouse as a Christmas gift? But then anyway, a gift is still a gift. And so I tried to use it in my laptop. The old mouse I was using started to malfunction and so fortunately, this mouse came to me at the right time. It is quite large, though it is just the usual size of a mouse .