Kensington's Pro Fit Ergo is all about keeping you pain-free. Its trackball reduces wrist movement, helping avoid repetitive strain injuries. It still feels like a mouse, so there's less of a learning curve, but the 45° tilt design makes it way more ergo than your average. And to help you get more done with less wrist motion, there's a 4 direction scroll wheel and 7 programmable buttons.Good to know- Set your speed just right with 4 DPI levels - from precise editing at 400 to breezy browsing at 1600- Use the KensingtonWorks software to change button functions to best suit through your workflow- Built-in trackball ejection makes it easy to clean and maintain- Free yourself from cables by pairing with either 2.4 GHz wireless or Bluetooth- Optical tracking lets you navigate quickly and accurately
