The keyboard is 33 cm long including the band on the left is used to put the AAA batteries. For those who want a tiny keyboard is perfect. But you will be surprised by the lack of space on the bottom. In fact, the only way to take the keyboard in hand by the side of the left, since the rest has no edge. Maybe for children, this is an ideal keyboard. But it is very unpleasant not to be able to hold the hand correctly. On a desktop, it may pose less of problem but if you are in a couch or in bed with the keyboard, it goes fast bother you. The function keys are preprogrammed: so you have to do it again a point less. Otherwise, it responds perfectly, typing speed, connecting seamlessly with PnP.
If you want a tiny keyboard, this one is for you. But if you think that because you have small hands (my case), it'll be ideal, it is not. The keys are also slightly too small. Displacement of the arrows are located in a place making their use very unpleasant.