Kensington 72239 PilotMouse Wireless Laser USB Mini Mouse (PC) 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 Three programmable buttons and a scroll wheel make fast work of navigation and reduce repetitive tasks to a single click