Buttons: 3D Hardware resolution: 1600CPI USB receiver Wireless range: 2.4GHz to 10 meters The 2.4GHz wireless USB micro-transceiver connects wireless right out of the box with virtually no interference and has up to 10 meters wireless range Mouse folds to 60% of its fully expanded size using the strong metal hinge Folding the mouse closed automatically turns it off Mini receiver snaps into the bottom of the mouse Push transparent button to change DPI to 800DPI and 1600DPI for your convenience Different colors are available Keystroke lifetime: 3, 000, 000 cycles Available with various patterns, OEM is welcome Compatible with Windows 98, 2000, NT, ME, XP and Mac Packaging: Blister CE, FCC certified and RoHS compliant