HP Wireless Comfort Mouse in Retail Packaging - Water Lily High-touch design: Classy blue finish, asian art and LED along with contoured edges give this mouse a distinctive style Ultra-Comfortable: Symmetric sculpted design for right or left handed comfort. The rubber material on both sides gives you enhanced control, soft touch and feel. Wireless freedom: No wires to tangle or limit movement. The small receiver installs effortlessly and helps to eliminate clutter Optical Performance: High-precision sensor provides precise, smooth and responsive tracking. No ball and no cleaning. Programmable buttons: 2 additional programmable buttons easily accessible on the top left side allow you launch applications, control sound volume, navigate backward and forward, zoom in and out or launch your favorite websites.