[Mechanical red switch]: characterized for being linear and smoother, slight key sound has no paragraph sense with minimal resistance, but fast action without a tactile bump feel which makes it easier to tap the keyboard. [Classic charming blue LED backlight]: customize multiple illuminated light effects with static and dynamic, supports about 20 kinds backlight modes, press Fn + Ins/ Home/ PgUp/ Del/ End/ PgDn/ ScrLK to switch , FN + / control backlight brightness, FN + -_ / =+ control backlight speed. [Full anti-ghosting keyboard]: all 87 keys are no conflict, allow multiple keys to work simultaneously with high speed for a reliable connection, have 12 multimedia keyboard, great for gamer, typist, programmer, writer etc.