Anker 2.4G Wireless Vertical Ergonomic Optical Mouse
This innovative mouse features a vertical design that positions your hand and wrist more comfortably during operation, allowing stress free use of the mouse for long periods of time. It has six buttons and a center scroll wheel. It also features a tracking sensor that is user selectable to eight hundred, twelve hundred or sixteen hundred dots per inch which allows the mouse to be used on a wide variety of surfaces. Finally, it uses a conveniently wireless, 2.4 gigahertz connectivity that only requires a USB port for linking up to your computer. This is another excellent offering that goes easy on your hands with little in the way of downsides.