Obtain the speed and accuracy of laser tracking in a simple, elegant design with the HP USB 1000dpi Laser Mouse - for the latest in laser sensing technology. Sophisticated technology - Manipulate fast or slow with precision on a variety of surfaces with high-performance laser accuracy. The wheel also functions as a third button when activated by pressing it. The HP USB 1000 dpi Laser Mouse has no ball or moving parts, which improves its durability, reduces sticking and the need for constant cleaning. Left-handed or right-handed users can enjoy a contoured shape that suits either preference.