The Targus Wi-Fi Laser Mouse combines technology and a hasslefree connection to bring you optimal comfort and usage. No more dealing with wires or wireless receivers. This mouse simply connects using your computer's Wi-Fi receiver. The high-precision laser sensor allows for accurate performance on almost every surface. The integrated four-way scroll wheel allows you to scroll horizontally and vertically. The mouse supports Windows 7 task switching with the touch of one button. The mouse comes equipped with two highquality Energizer batteries and is designed to provide up to 12 months of battery life depending on usage.