The Verbatim 8-Button Deluxe Mice features Blue LED technology, allowing users to navigate on virtually any surface, from a glass tabletop to granite counter top and with 2.4GHz wireless performance you can enjoy lag-free cursor movement. The mouse connects to the computer via a nano receiver, small enough to plug in and leave connected – great for computing on the go. When not in use, the receiver stores conveniently inside the battery compartment (which comes supplied with two AA batteries). It has a smooth Ergonomic design and Contoured shape with an easy-grip surface to ensure that the user remains comfortable after hours of computing. 2.4GHz wireless technology Blue LED lens for use on any surface inc. Glass / Granite tops Back/forward buttons for use in a Web Browser Zoom in/out in Windows applications e.g. Word / Excel Windows Start button / Windows 8 Home button 800/1300/1600 optional DPI. Ergonomic design for comfortable use Nano wireless receiver – plug n stay