Pro Fit Ergo Vertical Wireless Trackball, Black

Vertical trackball features an ergonomistapproved design that promotes proper wrist, arm and shoulder alignment to maximize comfort and minimize potential strains 60degree tilt angle keeps your wrist in a natural handshake position to improve wrist and forearm posture Easytouse design reduces the learning curve when transitioning from a mouse to a trackball Premium precision and speed provide more accurate and smoother cursor control, and allow you to easily switch between the dpi settings for different cursor speed control Bluetooth technology provides a stable connection for up to three computers Experience plugandplay default settings or use KensingtonWorks software to set pointer and scrolling options and professionally customize nine buttons to tackle common tasks with one touch Easytoclean design provides a button to eject the trackball for easy cleaning Long battery life works for up to 18 months on the two included AA batteries