Razer Viper Mini. Experience hard-hitting performance with our lightest mouse ever created—a lean, ultra-lightweight build that makes control effortless. Featuring cutting-edge optical mouse switches, a precise 8,500 DPI sensor and Razer Speedflex Cable for supreme accuracy and speed. Each click is registered using a light sensor so your command actuates at the speed of light. With no false actuations, the Razer Viper Mini becomes a true extension of you. When it comes to a shootout, no one pulls the trigger faster than you can.