8 Buttos wireless optical mouse
Size:128.75*63.66*41.85mm
Resolution:800DPI
key life over1,000,000 times
Interface:USB.PS/2.U+P
Compatible with windows 2000/XP/9X/ME/NT4.0
Radio frequency:27MHZ(2 channels)
All-directional operation within the distance of 1.5m
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