Great "clicker", serves its purpose. I needed a presentation clicker and I needed it FAST. Amazon Prime never lets you down! (well...almost never). This clicker is about the size of a pen, comes with a nifty carrying bag, and doesn't require a driver so you can just plug it into your USB port and go! And it's cheap for us poor grad students. Just be sure the USB connector goes all the way in. It's a pretty small piece, and I spent way too long trying to figure out why my slides weren't advancing; I just didn't have the USB connector in all the way...oops!