The Microsoft Wireless Optical Desktop Pro is the same price as the Logitech Cordless Comfort Duo but offers more mouse features. Equipped with Tilt Wheel Technology, the accompanying IntelliMouse streamlines up-and-down as well as side-to-side scrolling. If you work with spreadsheets all day, the mouse's easy horizontal scrolling can be a real sanity saver. And the Desktop Pro is equipped with back/forward Web navigation buttons. The two-tone keyboard has more style than the Comfort Duo, and the bounce-back of the keys during typing feels more comfortable.

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