Microsoft Black RF Wireless Keyboard 800 Keyboard & Mouse

Mouse Included: Yes Mouse Interface: USB Tracking Method: Optical Mouse Color: Black Distance: 15 ft Scrolling Capability: Tilt Wheel Operating System Supported: Windows 7, Windows Vista, Windows XP. Features: Microsoft Optical Technology 1000 dpi provides responsive cursor control. Snap-in Transceiver Stows conveniently under mouse for portability. Power switch turns the mouse on and off for up to 8 months of battery life. Designed for Comfort Comfortable in left or right hand. Scroll Wheel For faster on-screen navigation. Power Switch Turns the mouse on and off.