Bloody B800 Light Strike Gaming Keyboard Uses innovative LK optical switch that removes input lag for zero digital latency and 0.2ms key response. 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 Optic switch has a life span of over 100 million keystrokes. (Traditional metal switch tends to oxidize and wear out easily). 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. 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). Space-Bar is made of dual screws + dual springs + balancing bar for best durability