TrueMove Pro Optical Gaming Sensor The SteelSeries Sensei Ten Gaming Mouse has a TrueMove Pro sensor for true 1 to 1 tracking. When you move, your character moves. No lag. You've also got tilt tracking, which gets rid of unwanted tracking during angled movements. 60 Million Click mechanical switches From the first click to the last, the buttons on the Sensei Ten are going to be in great shape. You won't lose reaction speed, and you won't have to worry about your most used buttons not working. RGB lighting and on-board memory It's easy to customise the RGB lighting on the Sensei Ten - and because you've got LEDs on 2 zones, you can completely customise your mouse. Have favourite key binds for specific games? You can save them and switch easily thanks to the on-board memory.