Kensington Pro Fit Mid-Size Wireless Mouse - Ruby Red, Right-hand, Optical, RF Wireless, 1600 DPI, Red Kensington Pro Fit Mid-Size Wireless Mouse - Ruby Red. Form factor: Right-hand. Movement detection technology: Optical, Device interface: RF Wireless, Movement resolution: 1600 DPI, Buttons type: Pressed buttons, Buttons quantity: 3, Scroll type: Wheel. Power source: Batteries. Product colour: Red 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