R.A.T. TE Tournament Edition for professional and competitive gamers. Using Phillips Doppler-laser sensor provides up to 8200 DPI. engineered for mobility, performance and precision. Weight has been reduced to decrease inertia; speed and resolution have been radically improved for faster reaction times, and programmable button mapping has been optimized for popular e-sports games. In addition, customizable attributes such as "Lift-Off" height calibration and dynamic surface detection have been added to create the ideal mouse for professional gamers.