V7 Vertical mouse - 2.4 GHz

Ergonomically positioned at a comfortable 35?? angle Add an additional 10?? adjustment with the included magnetic base for 45?? vertical support Auto-Speed DPI allows for quick adjustment from 450-1200 dpi or lock at 600 dpi 6-buttons; Forward, Back, DPI, Wheel, Left, and Right Natural vertical position keeps forearm upright and minimal shoulder movement Trackball for improved ergonomics