Say goodbye to messy cables, and enjoy browsing comfortably with the Dell WM118 Wireless Optical Mouse. Featuring an ambidextrous form and a long battery life, this wireless optical mouse helps you navigate easily and perform all your tasks seamlessly. Reliable, wireless productivity with Dell wireless mouse. Effortlessly connect mouse via 2.4GHz RF wireless with a nano receiver. Enjoy smooth, accurate cursor control at 1000 dpi with LED optical sensor. 1 AA battery included. Up to 12 months of battery life depending upon usage.