Logitech V550 Cordless Laser Mouse for Notebooks One less thing to carry Clip-and-Go dock that lets you snap your mouse onto your laptop Extra-long battery life (up to 18 months) and low-battery indicator Plug-and-forget nano receiver that is so small, it stays in your laptop Revolutionary hyper-fast scrolling for flying through documents and Web pages Enhanced 2.4 GHz cordless technology for more robust, reliable performance