The Logitech MX610 Laser Cordless Mouse redefines performance with ultra-precise laser tracking on more surfaces and interference-free 2.4 GHz digital cordless technology. As the world's first smart mouse, it extends battery life by turning on and off with your computer, in sync with your PC, detects and eliminates wireless interference and alerts you when the batteries are low. Easy to configure, email and IM buttons light up when you receive new messages from selected friends and associates. Volume controls add convenience, forward/back buttons allow speed browsing on web sites and documents and the tilt wheel plus zoom is perfect for viewing digital photos and spreadsheets. Logitech MX 610 Laser Cordless Mouse - Mouse - laser - wireless - RF - USB / PS/2 wireless receiver