The Archer 8 WL right handed vertical ergonomic wireless mouse allows your right hand, arm and shoulder to be placed in a more human natural position. The vertical design provides better support for reducing wrist pain that can come from twisting your wrist and forearm when useing traditional mice. The Archer 8 provides ergonomic support and enables for long hours of computer and desk work. Attain higher precision with your choice of adjustable DPI levels. Simply switch between 3 different DPI levels, ranging from 800DPI (green led color),1600DPI (blue led color) to 2400DPI (red led color). The accessible DPI button lets you switch between the various tasks you partake in throughout the day. The Archer 8 will range up to 30ft/10m. No drivers are required for Windows and Mac.