... a full navigational control of your presentation. WLGP -008 uses green laser (532nm laser) as the pointer, which is much brighter than red ... page up and down, left, right, F5, B, ESC and laser pointer key.Play, pause, forward, backward, volume up and down, fixed ... down alarm)Control distance: up to 15 mCompatibility:Any computer with USB portWindows 98/2000/ME/XP, Vista, Linux, Mac OSApplication ...