Light and sound signaling system enables speaker to send cues to projectionist for next, back and blank using wireless hand-held actuator. When two or more cue lights are connected by wire (Cat-5 or XLR cable, set one cue light as master and the other as slave. Only master cue light receives trnasmitter's signal. For direct computer connection, cue light sends commands right arrow, left arrow and B via keyboard emulation, thus preserving mouse functionality. Sound volume control adjusts volume of cue light sound to 3.5 mm side jack (No 6) and to 4-pin side XLR jack for belt-pack intercom headset.