... properties, feel mfortable Sealed the design waterproof, dustproof 1. waterproof,2.dustproof, and acid and ... keyboard4.Sealed the design5.Environmental protection non-toxic, waterproof, dustproof, and acid and alkali, shockproof, ... keyboard that cannot be compared6.silent; Bright red color, individual character is unique;7.Keyboard characters special process, never retreated; Foldable Silicone Keyboard ...