?Precision Engineered Keycaps Design? Medium height keycap gives you faster response and better keystroke feeling. Natural Tilt gives a more comfortable feeling to your fingers. Non-slip adjustable rear feet for the perfect typing angle. Anti-sweat, prevents keycap damage, designed for longevity, durability delivering precise tactile feedback. (New Improved Version) ?Gorgeous Rainbow Backlit Keyboard?7 different color lighting modes&effects, 4 backlight brightness levels, adjustable breathing speed. Brilliant LED backlighting enhances the experience with dynamic and virtually unlimited lighting adjustability, make you more involved in the atmosphere of the game