... , FCC USB Wireless Notebook Optical Mouse This handheld trackball Notebook Mouse is wireless 10-meter range, which ... :USB,PS/2 also availableDPI :Table:Table:1200dpi, trackball: 1600dpiDistance Effective:10m wireless handheld MouseProduct Colour:Black,WhiteCompatibility ... XP/Vista/Mac OS X, etcThe wireless handheld trackball mouse, the different life experience. Wireless Notebook Optical ...