Microsoft Arc Touch Wireless Mouse: You can easily navigate features on your compatible PC or Mac with this mouse, which wirelessly connects to your computer to provide a flexible range of motion. Everyone in your household can comfortably use the mouse since it features an ergonomic, ambidextrous design for right- or left-handed use. With BlueTrack technology, your mouse works on a variety of surfaces - This mouse's blue beam is 4 times larger than a standard laser. Complies with CE, FCC, RoHS, UL. 4 3/8" L x 2 1/4" W x 1 1/8" H