MICROSOFT CORDLESS WHEEL MOUSE PS/2 AND SERIAL

Designed to fit any hand comfortably, the Microsoft C57-00001 Cordless Wheel Mouse helps reduce clutter on your desk because it has no cords to get tangled. Even if your PC is under your desk or out of sight, the multichannel digital radio technology will work reliably. No line of sight between the receiver and the mouse is necessary. The scroll wheel allows you to roll the wheel forward or backward instead of clicking on a scroll bar or arrow. And if your application's software supports the zoom function, you can also use the wheel to see either close-up or big-picture views--without using menus or toolbars.