Innovative LK Optic Switch technology uses optic switch to react at lightning speed with extreme 0.2ms key response, exclusive "long-lasting" typing sound and tactile feedback, creates more passionate for gamers. LK Optic Switch travel with distance of 3mm, which is 25% faster than traditional metal switch. (Traditional metal switch travel at distance of 4mm). LK Optic Switch reacts at lightning speed without lag. (Traditional Metal Switch delays 18~30ms due to metal bouncing). LK Sound Creator Technology developed for “long-lasting� typing sound, while regular switch uses metal friction to generate typing sound and tends to fade away after a several months. LK Optic switch has a life span of over 100 million key strokes. (Traditional metal switch tends to oxidize and wear out easily). Customize freely 3 types of RGB Animation modes with 16.8 million color options, making your own unique "Self-Customize" RGB. 6 Types of lighting effects are preloaded in the keyboard by default. Adjust the lighting effects by pressing the "FN" keys with "F12" keys to rotate without driver. Press Fn + F12 to adjust the lighting effects. Press Fn +“↑ / ↓� to adjust the light brightness. Store your favorite RGB Lighting Effects from FN+ 0 to 9. And you may share your newly created RGB Animation lighting effects with your friends or vise versa. RGB indicator backlight effects will be customized based on the modes and change by pressing Fn + � / → . Full NKRO ensures each keypress can simultaneously register regardless of how many keys are being pressed or held down at a time including modifier keys (Shift, Control and ALT). Exclusive advanced Nano-coating over the PCB board, protect the PCB from corroding by wet air or caustic chemicals, prolonging your keyboard lifetime. Both drainage channels and holes are set in precise position, ensuring the water flows out efficiently.