The Lenovo 510 Wireless Keyboard and Mouse combo redefines modern simplicity This wireless mouse and keyboard complement your desk with their simple yet elegant design Easily connect wirelessly to your PC using one 2 4 GHz nano-USB receiver freeing up your USB ports for other uses Just plug it in and you're ready to go with no installation needed! Enjoy the comfort of typing on a full-size tilting computer keyboard without worrying about cords getting in the way or cluttering up your desk The wireless keyboard features a durable water-resistant casing equipped to handle the occasional spill The island key design increases typing accuracy and comfort with separate arrow keys number pad and six FN media control keys The accompanying wireless mouse has ambidextrous design making it comfortable for the left or right hand and features a 1200 DPI optical sensor for accurate pointing Plus with up to 12 months of battery life with a single AA battery your corded days will soon be long behind you Battery life may vary based on usage