Microsoft 7N9-00001 Designer Bluetooth Desktop Ultra-thin and modern design complements your desktop. Wireless Bluetooth Smart technology. The keyboard is full-sized with a built-in number pad. Blue Track Technology provides remarkable tracking onvirtually any surface. Ambidextrous design allows you to control your mousein either hand. Ultra-thin and modern design complements your desktop. Wireless Bluetooth Smart technology. The keyboard is full-sized with a built-in number pad, System Requirements: Operating System: Windows 8/ 8.1, RT 8 / 8.1, Android 4.4+, Mac OS 10.10+ Blue Track Technology provides remarkable tracking onvirtually any surface. Ambidextrous design allows you to control your mouse in either hand