A multitouch mouse from Apple. Introduced in 2009, Magic Mouse has no buttons or wheels. Its entire top surface is touch sensitive, allowing it to respond to gestures for scrolling in all directions. It also functions as a regular click mouse. See
Magic Trackpad.
It's Magic!
Scrolling is done by sliding a finger over the mouse in the appropriate direction. There is no scroll wheel, and the surface accepts one- and two-finger gestures. (Image courtesy of Apple Inc.)