Kensington PilotMouse Laser Wireless Pro, K72242 Advanced laser tracking works precisely on virtually any surface with 20 times the surface sensitivity of an optical mouse Utilizes 2.4 Ghz wireless technology for ultra high-speed performance Has a wireless range of up to 30 feet for workspace freedom and presentation flexibility Backed by a five-year manufacturer's warranty and free technical support Five mouse buttons, and a 4-way tilt-scroll wheel that lets you move side-to-side or up and down easily