 | | Brand New Mini USB Mouse, off table and without limitation of operational space. Thumb-controlled trackball, 4D page scrolling function can be controlled simply by your thumb.. Can avoid the harm on your wrist and muscle.. Unit Dimensions: 5.75 x 2.5 x 4.25 inches. Color : Black. Resolution: 400dpi. Plug and play ,no software required. Support Windows 98/ME/2000/XP/Vista & Windows 7 & MAC OS.. | | $5.04
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