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The top part is a touchpad. It can recognize scrolling with one or two fingers, and can recognize the different amount of fingers on the touchpad as well.
Sorry, there was a problem. Please try again later.Just run fingers where roller woukd be.
Sorry, there was a problem. Please try again later.Buttons are there ... just not visible
Sorry, there was a problem. Please try again later.It is similar to a Magic Mouse (if you have ever owned a Mac), you swipe on the track pad portion (where you normally would click) up or down depending on the direction you want to scroll. This mouse works great, and I really like how it flattens completely down for storage in my laptop case.
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