EXCLUSIVE ROMER-G MECHANICAL SWITCHES Fast, Durable Gaming Technology Logitech exclusive Romer-G™ mechanical switches give you incredible responsiveness, with a key actuation point up to 25 percent shorter. It''s faster than standard mechanical switches. Faster actuation means faster response for the edge in battles where every millisecond matters.INTELLIGENT RGB ILLUMINATION Over 16.8M Customizable Colors Use Logitech Gaming software to your keyboard lighting effects. Mark keys by color to keep track of spells and game commands. Each key''s backlight can be customized from a palette of 16.8 million colors. The key letters are entirely illuminated for a beautiful, evenly-lit glow.INTEGRATED ARX CONTROL In-Game Stats on a Mobile ScreenArx Control app introduces second-screen capability. Use your smart phone or tablet to display in-game info, vital system statistics, and in-game control in supported games like Tom Clancy''s The Division, and more. The keyboard''s adjustable smart dock supports iOS® and Android™ devices.DEDICATED MEDIA CONTROLSPlay, Pause, Mute, AdjustTake control of your music and videos, using the dedicated media controls to play, pause, and mute. Use the on-board roller bar to adjust the volume. Or, skip to the best scenes at the touch of a button.9 CUSTOMIZABLE G-KEYS Custom macros and commands Orion Spectrum''s 9 fully-customizable G-keys can be assigned commands per profile, and have been positioned for optimal speed and accessibility. Up to 27 commands can be stored over the three modes for maximum customizability and convenience. Use Logitech Gaming Software to easily set up and manage profiles and commands.113 KEY ANTI-GHOSTINGReliable Control to Take CommandReliably register inputs through even the most strenuous gaming sessions with anti-ghosting protection.ABSOLUTE COMFORTFamiliar keys and layoutG910 features familiar cylindrical keycaps in a layout designed for maximum speed. One large palm rest and adjustable feet ensure that you are in a comfortable position whether typing or gaming.