Good to know - Adjust sensitivity on the fly with the DPI switch - the LED indicators let you know how fast your Cherry gaming mouse is set - The ribbed RGB scroll wheel lights up with all the colours of the rainbow - you can use the software to choose your favourite and even add lighting effects - You can program and map the buttons to set up profiles, then quickly switch between them - quite handy if you prefer different layouts for various genres or if you share the mouse - With onboard memory this mouse remembers its settings and profiles even when you switch PC