Recognized as technology designs to reduce noise pollution, the Logitech M220 Silent Wireless Mouse Grey has been awarded the Quiet Mark certification by UK's Noise Abatement Society. As you operate the two buttons of the Logitech M220 Silent Wireless Mouse, hardly any clicking sound can be heard. Dragging the mouse along its feet produces next to no noise. Using the scroll wheel produces minimal clatter. The M220 mouse is engineered to reduce the output of noise produced by its functioning by an astounding 90%. Make full use of the advanced Optical tracking by placing and running the Logitech mouse on multiple material surfaces. Providing enough power to run the mouse wirelessly for 18 months straight is a single AA battery. A sleep mode is activated to save battery power when the mouse has been continuously left idle. Key Features OVER 90% NOISE REDUCTION SIMPLE. RELIABLE. STRONG. COMFORTABLE SHAPE. Wireless Insert the nano receiver into the USB port of a computer and use it immediately with the plug-and play feature. The receiver can be left in the USB port because it is small enough to lie almost level with your computer. Use the wireless mouse from a considerable distance of 10m through its 2.4GHz connection. Design The M220 has a gently curved black design which emphasizes its style and class. It does not matter what your dominant hand is as the mouse has been designs with ambidextrous use in mind. With small dimensions of 99 x 60 x 39 mm and a 75.2g weight, it is made to be easily moved around. Compatibility Run the silent mouse seamlessly on systems such as Chrome OS, Mac OS X 10.5 or later as well as the Linux Kernel 2.6+2. It is additionally compatible with various Windows systems such as RT, 7,8 as well as 10 or later.