In it for the long run - enjoy 3-years manufacturer warranty on the device from the date of purchase,Experience ultra-responsive control with a 1600 DPI optical sensor (Mouse),Enjoy high performance with low noise â?? get high-speed, accurate typing with low-profile quiet keys (Keyboard),Maximize your productivity with this power-packed HP keyboard and mouse combo, perfect for professional use,Work with ease with a design that ergonomic, sleek and naturally comfortable