3200dpi precise optical sensor 30G acceleration ensures the best performance during rapid movements On-the-fly DPI switching with 3 stage red LED light indicator Gaming-grade rubber provides a non-slip grip 4 way tilt-wheel scrolling provides more functionality & more application Gold-plated USB (Universal Serial Bus) connector 1.8m strengthened cable customized for professional gamer Professional-grade optical sensor offers optimum tracking resolution for precise control & movement. Mouse Movement Boost with up to 30G of added Acceleration Versatile 4-direction tilt wheel for quick & easy desktop navigation. You may have to download GIGABYTE FORCETM software first to enjoy the complete function. 800/1600/2000 3-Stage DPI adjustable switch with 3-Stage LED indicators for quick on-the-fly DPI adjustment The hardware based sensitivity up to 3200dpi M6900 is capable of using exclusively intuitive software application to customize button settings, sensitivities, & also simulate keypress of keyboard based on gamer's needs. Download the application from GIGABYTE official website to program the buttons. Anti-slick ergonomic rubber grip reduces wrist strain & maximizes comfort during extended use. V.1 Thumb rubber grip V.2 Rubber grip at both sides 1.8M ultra durable cable with gold plated USB (Universal Serial Bus) connector ensures stable & optimum signal transfer. Teflon gaming grade feet pads for enhanced accuracy & freedom of movement.