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.USB receiver deactivates battery when inserted into presenter for storage preventing accidental battery drain, non laser presenter is ideal for air travel or other environments where lasers are prohibited, battery indicator light warns when battery power is low* Minimum quantities may apply, please check before ordering.