SCIENTIFICALLY PROVEN: Studies show that a vertical mouse causes less strain on your wrist and arm (it's BETTER for you)
NATURAL: Your arm was not meant to be twisted in a horizontal position (try putting your hands by your sides and raise them slowly - that is the natural position for your hands! )
DPI SWITCH: Choose between 1000-1600-2400-3200 DPIs!
LED LIGHT INDICATOR: Glows Green/Pink/Blue/Red depending on your DPI configuration
COMPATIBILITY: Compatible with Windows and Mac OS X