DSI 660BL is an industrial silicone waterproof keyboard. It is a compact, hygienic-centric design with a laptop key layout and standard numeric keypad. 360-degree Safeguard against dirt and water. Silicon membrane for utmost hygiene. IP68-rated waterproof certified. Flat keys for easier surface disinfection. Excellent tactile key feels for heavy-duty type writing in hygiene critical application, and it is a backlit keyboard. LED is rated at 200,000 hours or over 22 years life expectancy