Kensington Pro Fit Wired Mid-Size Mouse, Right-hand, Optical, USB Type-A, 1000 DPI, Black Kensington Pro Fit Wired Mid-Size Mouse. Form factor: Right-hand. Movement detection technology: Optical, Device interface: USB Type-A, Movement resolution: 1000 DPI, Buttons type: Pressed buttons, Buttons quantity: 6, Scroll type: Wheel. Power source: Cable. Product colour: Black While Apple's Magic Mouse lets you do a few multi-touch gestures, I've never liked how it felt in my hand, and I hate how it scrolls — I'd much rather have a real scrollwheel for navigating the long pages of text I read day in and day out. When I plugged ... Really small receiver. Comfortable. Nice colors. Great battery life. Inexpensive. Not for lefties. Can't reprogram all the buttons