Built-in fully waterproof and dustproof technology protects the keyboard from contamination, Ideal for industrial, food service, marine, manufacturing, military, and medical applications, etc. Completely dust-proof design, fully sealed, water-resistant. Standard 104 keys full-size keyboard and included 12 multimedia keys. Quiet keycaps support up to 5 million keystrokes life, non-slip feet to ensure that the keyboard is not easy to move during use. Withstands unforeseen site conditions, whether slightly splattered or soaked, the keyboard looks like new after washing.