Low profile keys designed for speed and comfort. The keyboard has a battery life up to 8 months and includes a low battery indicator. 2.4GHz technology provides reception range up to 30 feet. Spill-resistant design provides protection in case of spills by allowing liquids to drain out of keyboard. Adjustable keyboard height for personalized comfort. Textured grip for mouse accuracy, and comfortable for both right and left-handed users. The mouse features optical sensing technology to promote battery life up to 12 months, and includes a low battery indicator.