Maestro is a customised projector that allows the user to conduct their screen experience with a baton. Its operating device is controlled by movements made with the baton. Normally, its diagonal lengths measure the size of the screen display. Considering this fact, Maestro has been designed to allow users to set the size and location of the display by simply moving the baton diagonally across the wall. Controlling Maestro is like conducting an orchestra. Gestures are performed while touching the groove on the remote control.