DC 2.4G Wireless Keyboard and Mouse Combo for Mac Dell Hp Lenovo PC Desktop Computer. (Black) Miniature wireless receiver, plug and play Support multi-language layout Mice optical resolution: 800/1200/1600DPI adjustable Compatible OS: Windows 95/98/NT/ME/2000/XP/VISTA/7/8 Mac. Brand Trademarks: DC , Record Number: 86526328, more details, please check by uspto gov.