Sharkk Mouse Wired Ergonomic Vertical Mouse Optical Tracking Mouse with Adjustable DPI for Computer and Laptop Experience new levels of comfort and maximize your computer experience with the Wired Ergonomic Vertical Mouse by SHARKK. Specifically designed to better fit the contours of the hand, the ergonomic vertical design encourages a more natural and comfortable hand motion. This can be very therapeutic for people that spend an extended period of their time using the computer or for those who suffer from various wrist/hand ailments. Comes with optical tracking technology for better precision and advanced DPI settings for increased sensitivity and traction control. A compact, portable design and advanced compatibility (Windows, Mac OS X and Linus) means you can pack up SHARKK’s Wired Ergonomic Vertical Mouse and us it anywhere…with any computer!