The Kensington Wireless Presenter lets you remain in control of your presentation from up to 20m away. Conveniently portable and easy-to-use it frees you from distractions and lets you focus on what really matters – your audience. – Intuitive and easy to use forward back and blackout screen controls – Battery indicator light warns when battery power is low – Requires 2 x AAA batteries (included) – Professional matt black finish – 2.4GHz wireless USB receiver prevents interference and stores inside presenter when not in use for safe keeping – USB receiver deactivates battery when inserted into presenter for storage preventing accidental battery drain – Wireless range of up to 20m ideal for conferences – Designed to fit comfortably in the palm of your hand – Rubberized texture provides protection and grip – USB Plug & Play – PC and Mac? compatible – Non laser presenter is ideal for air travel or other environemnts where lasers are prohibited