Wireless presenter features a bright, green laser pointer to ensure it's easy to see on any presentation screen, even in a brightly lit room. Easy-to-use operation combines functions of page up, page down, play slides and quick black screen for more control during your presentation. Vibration function provides a convenient reminder to help you keep track of time. LCD timer and battery-power indicator prevent unexpected runout. Volume buttons provide a simple way to adjust your audio as needed. Auto shutoff when the receiver is stored in presenter ensures efficient operation. Presenter requires two AAA batteries (sold separately). Wireless range is up to 98.4' (30 meters). <p><a id="gfk-spex-minisite" rel="nofollow" href="javascript:void(0)" onclick="javascript:window.open('//content.etilize.com/mini-site/en_us/1064679928.html', '_blank', 'height=800, width=780, resizable=yes, scrollbars=yes, toolbar=no, menubar=no, location=no, directories=no, status=no'), return false, ">More from the Manufacturer</a></p>