microsoft wireless mouse 5000
world s most advanced tracking - go more places than optical or laser . the microsoft wireless mouse 5000 with revolutionary microsoft bluetrack technology works more places than ever before including on granite countertops carpets even on a wood table or a rough unfinished park bench . don t compromise comfort and productivity for portable computing . features reliable wireless microsoft 2.4 ghz wireless delivers a reliable connection with up to a 30-foot range . either-hand comfort modern design and premium finish provides comfort for either hand . symmetrical shape and unique rubber grips give you control and cushioning . snap in and go simply snap in the transceiver for convenient on-the-go storage . additional features 8-month battery life 3-year limited warranty what is bluetrack microsoft s proprietary bluetrack technology works on more surfaces than both optical and laser mice . it uses high-angle imaging optics to generate an accurate picture of the surface . now track more accurately on granite carpet wood system requirements windows vista windows xp mac os x v10 .2 10.5.x cd-rom 2 aa alkaline batteries included bluetrack technology does not work on clear glass or mirrored surfaces . compared to leading laser and optical mice commercially available spring 2009 .