High performance Hero 16K sensor: Logitech's most accurate sensor yet with up to 16,000 DPI for the ultimate in gaming speed, accuracy and responsiveness across entire DPI range 11 customizable buttons and onboard memory: Assign custom commands to the buttons and save up to five ready to play profiles directly to the mouse Adjustable weight system: Arrange up to five removable 3.6 grams weights inside the mouse for personalized weight and balance tuning Programmable RGB Lighting and Lightsync technology: Customize lighting from nearly 16.8 million colors to match your team's colors, sport your own or sync colors with other Logitech G gear Mechanical switch button tensioning: Metal spring tensioning system and pivot hinges are built into left and right gaming mouse buttons for a crisp, clean click feel with rapid click feedback