Logitech diNovo Wireless Bluetooth Desktop Keyboard ( Windows PC ) Displays email or instant message notifications, media selection playback status, and smart calculator functionality Includes LOGITECH's high precision MX-900 rechargeable optical mouse - it's award-winning MX Optical Engine is the last word in precision and accuracy Turns your PC into a Bluetooth control center, allowing users to synchronize data between the PC and Bluetooth PDAs, cell phones and other devices Works with both Windows XP and Windows 2000 Five year warranty