High performance Hero 16K sensor: With up to 16,000 DPI for the fastest possible gaming speed, this is Logitech's most accurate sensor to date. Eleven programmable buttons and internal memory Weight system that can be adjusted: For individualized weight and balance adjustment, place up to five detachable 3.6-gram weights inside the mouse. RGB lighting that can be programmed and lightsync technology: You can choose from almost 16.8 million different lighting colors to match the colors of your team, your own, or other Logitech G equipment. Tensioning a switch button mechanically: The left and right gaming mouse buttons feature pivot hinges and a metal spring tensioning system for a clear, quick click feedback.