The Targus Laser Wireless Desktop Mouse utilizes the latest in laser technology providing 20 times more tracking sensitivity than typical optical mice; the result – greater accuracy and improved use on shiny surfaces. Never have mouse usage interrupted again with the rechargeable batteries and USB charge cable that charges even while in use (no charge cradle required). Convenient wireless freedom enables uncluttered workspaces free from cables. Mouse movements are accurate and precise thanks to highly reliable RF wireless technology. The wireless receiver and charge cable easily insert into an extension port, eliminating the need to reach around your PC. Increase productivity with the convenient pre-programmed buttons that reduce hand and wrist movements from mouse to keyboard. Scroll-up and scroll-down, Alt-Tab (application window switch) and Internet navigation "forward" and "back" buttons provide simple and efficient short cuts for Windows use.