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A proprietary tracking technology from Microsoft that lets you use a mouse on virtually any surface, excluding clear glass and mirrored surfaces.

According to Microsoft, in a BlueTrack technology mouse, the sensor, the light and the component configuration are optimized for the best possible surface image for a variety of conditions. BlueTrack Technology provides the mouse ASIC and the computer with exceptionally accurate and detailed information for advanced tracking on almost any surface.

A BlueTrack technology mouse uses a Microsoft-designed complementary metal-oxide-semiconductor (CMOS) chip with advanced algorithms and pixel architecture for more precise tracking. It is Microsoft's fourth-generation application-specific integrated circuit (ASIC) using CMOS technology. 

Proprietary high-angle imaging optics generate more exact surface images - even of shiny surfaces such as granite and marble - instead of blurry, out-of-focus images, as can be produced by many of the leading laser mice. And blue light helps create high-resolution, high-contrast images for better navigation. The wider beam enables illumination of a larger surface area and allows more light to return to the sensor. This helps for tracking on irregular surfaces such as carpet, where a smaller beam could get lost between the individual fibers.

BlueTrack Technology debuted on two Microsoft products in November 2008: the Explorer Mouse and the Explorer Mini Mouse.

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