FeaturesKensington Mouse-in-a-Box Wired USB Black/Grey K72356EUOptical mouse sensor for better controlScroll wheel with integrated third mouse button for easy browsingPlug & Play USB connection - no setup requiredLong 180cm USB cableFor a reliable wired mouse and great everyday performance at an attractive price, the Kensington USB Wired Mouse-in-a-Box is the ideal choice.  The highly responsive 800 dots-per-inch optical sensor and integrated scroll wheel makes precision clicking and scrolling easy.  Featuring an ambidextrous grip for comfort and better control, the wired USB connector means battery-free reliability, straight from the box.