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.

• Digital radio technology for true cordless freedom
• A comfortable design for your right hand
• Three customizable buttons and a scroll wheel
• Smart power management keeps battery working for months
• Easy to install and set up