Touch Mouse T620 offers a full-touch surface for smooth and precise control. Effortlessly swipe, scroll, tap and click for a more efficient and productive experience. Glide through Windows 8 with simple, intuitive gestures for essential navigation such as horizontal/vertical scrolling, Windows Start screen access, app switching and more. The smooth, rounded shape and designed-for-comfort curves deliver comfortable handling and gesturing for hours on end. A laser-grade optical sensor ensures precision tracking on virtually any surface. For your convenience, the tiny, included unifying receiver connects up to six compatible Logitech mice and keyboards. You can use one AA battery for a lighter mouse and a three-month battery life or use two AA batteries for a solid feel and six-month runtime. Mouse is compatible with Windows 8 or Windows 7 and also offers advanced, 2.4 GHz wireless technology. Mouse includes two AA batteries and travel pouch.