This multi-functional gadget measures 0.5 x 0.9 x 1.8 in (13 x 24 x 46 mm) and can easily travel with you anywhere you go, weighing just one ounce (30 grams). You can choose between three colors, ...

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Microsoft has sent quite a few mice my way in the past year or so, and most of them have been specialized in some way, such as the hard-core gaming mouse and the fancy presenter/laser pointer mouse.