“Pocket Clapper” used for motion picture production. “Pocket Clapper” is a pocket size gadget which can be used for making a clap sound whenever it is necessary. It is also possible for you to write the outline of a shooting scene on the blackboard in “Pocket Clapper” with a white chalk. “Pocket Clapper” is a powerful gadget which assists you to take motion picture. It can be used for adding unique flavor in your motion picture, and synchronizing of picture and sound when you take them separately.