Microsoft M54-00013 Optical Desktop Elite for Bluetooth 2.0 Wireless Keyboard & Mouse Combo

* Bluetooth (TM) Technology
Easily connect your computer to a host of Bluetooth devices. Take advantage of greater data security and wireless range, plus reduced interference.
* Tilt Wheel Technology
The entire wheel tilts to deliver smooth, accurate performance as you scroll horizontally and vertically through documents and Web pages.
* Three times the battery life
Work longer without interruption. New optical technology helps extend battery life to as much as three times that of competing products.
* Wireless freedom
Experience the ease and convenience that wireless keyboards and mouse products offer, and say good-bye to tangled cords and clutter.
* Optical technology
An optical sensor tracks mouse movement, giving you greater durability, increased speed, improved accuracy, and more consistent performance.