Roll Up Flexible Keyboard with Back Light Full Size Flexible Lighted Keyboard; Standard 109 key layout; PS2 input with a USB adapter Bendable, foldable, water resistant, waterproof, even works under water. Keyboard is completely sealed preventing germs from entering anywhere inside the keyboard. Keyboard can be used safely in highly dusty environments (factories, industrial warehouses, and retail facilities) Keyboard surface can be washed and disinfected; Waterproof silicon material; compatible with Windows 98 / 2000 / XP / Vista; CE, FCC, ROHS Approved