Description Multimedia hotkeys give you quick access to functions like media player, homepage, volume adjustment and more With Rapoo's energy saving technology, you can use your keyboard  for up to 12 months and the mouse for 12 months without power interruption Adjustable Tracking Engine Select low DPI for accuracy or high DPI for fast movement. You can instantly switch between 500 and 1000 DPI Spill-resistant design Spill-resistant keyboard design, so you do not have to worry about the keyboard malfunctioning after accidental spills 2 Years Replacement Warranty