Experience new levels of productivity with the Adesso iMouse G2 -Ergonomic Optical Mouse. Its advanced optical sensor tracking method lets you work on most surfaces with better speed and accuracy. Easily switch between these DPI resolutions with the DPI Switch button located on the top of mouse. It also equips with two internet navigation buttons and a DPI switch for adjusting different resolutions (800/1200/1600/2400). All these features, along with its ergonomic design, provide great control, response and comfort with minimal hand movement.