This week and the next two week's photos are all related. They are all different parts of the same "beast". It's quite small, you can hold it in the palm of your hand (well if you have small hands like me, then your hand) and though there are many, many makes and models of this item, this particular unit performs the function it was designed for, for three different options. Does that sound as confusing and nondescript as I was trying to make it sound??