904346-0403 Logitech® NEW - Cordless Trackman® Wheel Trackball

Here's a trackball that fits comfortably into your right hand, with its buttons and scroll  wheel at your fingertips and a smooth trackball right underneath your thumb. It's cordless, so you can put it just about anywhere on your desk within six feet of the receiver. And it uses optical technology, not wheels or rollers, to deliver smooth tracking with virtually no cleaning or maintenance!

• Marble Sensing Technology Provides Smooth Precision Trackball Movement!
• Outstanding comfort and superior performance
• Scroll wheel doubles as a third mouse button
• Trackball New Optical technology means maintenance-free
• PS/2 And USB Port.