The 2.4 GHz Wireless Ergonomic Laser Mouse from Adesso is a 2.4 GHz radio frequency wireless mouse that offers you 30' (9.14m) of wireless freedom and eliminates the constraints a wired mouse often causes. Its laser sensor tracking method allows you to work on any surface with better speed and accuracy. In addition, this mouse includes 3 distinct levels of dpi resolution - 800 / 1200 / 1600. For precise targeting it features 800 dpi, for quick response it features 1200 dpi and for fast maneuvers 1600 dpi. You can easily switch between these dpi resolutions with the dpi switch button located on top of the mouse. All these features, along with its ergonomic design, provide great control, response and comfort with minimal hand movement.