Razer VIPER MINI USB Gaming Mouse - Black62 g ultra lightweight ambidextrous design: Without the need for a honeycomb design, our lightest mouse allows for smooth, effortless control that makes no compromise on its build strength with 6 programmable buttons for greater utility Razer Optical Mouse Switch: Every click you make is actuated at the speed of light with no debounce delay, so youll always be the first to pull the trigger. The switches are also durable for up to 50 million clicks