Navigate virtually anywhere with the Wireless Multi-Trac Blue LED Optical Mouse. Blue LED technology allows you to point & click on more surfaces than other mice from a glass table to the granite kitchen counter to airport carpeting. Contour ergo-friendly shape & easy grip surface let you use this mouse comfortably for hours. Efficient low-power consumption requires only one AA battery. Plug in the included nano receiver & forgot about it. The small receiver plugs into your laptop's port & can stay; no need to plug & unplug bulky receiver or deal with cords. Or you can store the small nano receiver in the battery compartment, offering convenient storage & portability, which makes this a great full-size, go-everywhere computer accessory. Optical mouse also features a USB 2.0 interface & is compatible with Windows 8, 7, XP, 2000, Vista, Mac OS 10.4.X & higher. The single AA battery is included.