A mouse is the item that you move to move the pointer on the computer screen. With that said, and the fact that 99% of operating systems are GUI interfaces, the mouse plays a very important and vital role for computers. They can come in bluetooth 5.0 or USB-C options. The mouse will give an alternative pointing device when compared to a touchpad that some people may not like. With that in mind, one might want to consider a bluetooth mouse. All mice are required to support scrolling. This is done by using a wheel, or using a capacitive area of the mouse.