This is a normal mouse that is super handy if you carry it around a lot. You unfold it so that it has the arc and it connects to the Surface pro right away. (The mouse movements are precise and fluid and the buttons are also comfortable to use) When you need to move on, you can flatten the mouse, which turns it off at the same time. I find it an insane added value to the touchpad. But I always prefer a mouse to a touchpad - it's just a matter of taste.