The SteelSeries [RAW] Heat Orange is the purified form of the original SteelSeries Sensei. It is is the essence of performance and embodies everything we ever learned about mice everything we ever researched everything we ever discovered everything that makes a mouse great is exactly what we built the SteelSeries Sensei mice around. The DNA of Sensei is programmed to win. These are those rare hardware products forged by love and science trial and error passion from professional gamers and a desire to push the envelope. SteelSeries Sensei mice were born for tournament victory; they are built to help you win.