This fully-sealed keyboard is designed to meet NEMA 4X specifications, meaning it is resistant to dirt, dust, water, ice and corrosives. Built with an industrial silicone rubber keypad and a rugged ABS polycarbonate case, the BT-870-TP-SLIM is easy to clean with disinfectants. The compact design and internal Bluetooth module make the BT-870-TP-SLIM highly portable. In addition, its red LED backlighting is ideal for nighttime or ambient-light use.