Logitech MK320 Black USB RF Wireless Standard Desktop (French CDN Layout) Mouse Included: Yes Mouse Color: Black Power Supply: 2 AAA (keyboard) and 1 AA (mouse) batteries Hand Orientation: Both Hands Scrolling Capability: 1x Wheel Operating System Supported: Windows XP, Windows Vista, or Windows 7 System Requirement: 1 USB Port Package Contents: Keyboard Mouse USB receiver 2 AAA (keyboard) and 1 AA (mouse) batteries (pre-installed) User documentation