125 keys: Allow Accurate typing 9 Programmable G-keys: Let you Create Custom Game Macros, so You Can Quickly Execute Complex Commands Dedicated Media Controls: Include Play, Pause, Mute, Volume and Skip for One-touch Operation Exclusive Romer-G Mechanical Switches: Give You Incredible Responsiveness, with a Key Actuation Point up to 25 Percent Shorter - Its Faster than Standard Mechanical Switches Customizable RGB Illumination: Enables you to Personalize Individual Key Lighting Using a Palette of More than 16 Million Colors Integrated ARX Control App (Download Required) Along with a Smartphone Dock Lets You Access In-game Data on Your Smartphone or Tablet Without Interrupting Gameplay 113 Key Anti-ghosting Reliably Register Inputs Through Even the Most Strenuous Gaming Sessions with Anti-ghosting Protection