The Kensington Wireless Presenter lets you remain in control of your presentation from anywhere in the room. Conveniently portable and easy-to-use, this wireless presenter frees you from distraction and allows you to focus on what matters most your presentation. The Kensington Wireless Presenter features 2.4GHz wireless technology that delivers interference-free control of your pointer from up to 60 feet away, and an intuitive four-button design with one-touch start functionality. This unit has a compact, ergonomic design with a rubberized texture that offers a comfortable and secure grip, and a handy storage space inside the palm-sized controller for the wireless USB receiver so it never gets lost. This Kensington presenter also features fingertip control for easy use, and is plug-and-play for simplicity without requiring setup. This wireless presenter runs on two AAA batteries with long, reliable usage time, and is backed by Kensington"s one-year warranty.