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.

The Logitech Cordless TrackMan Wheel provides you with unprecedented desktop flexibility. Digital radio technology allows it to work without being pointed at the computer, so even on crowded desks, you can use it where and how you want. Work anywhere within a 6-foot radius of the receiver. Optical technology delivers superior precision and performance for detailed work and smooth tracking for longer use. The Logitech cordless wheel boasts long battery life and includes a battery indicator to warn you when the battery is low. Software updates are available for download at Logitech.com.