... switch sound module use in gift box/promotion gift/card Speaker pull-tab switch sound module for music box pull-tab ... , buttons, light sensor, vibration sensor, shadow sensor or rocking switch.Main component: speaker, PCB, IC, batteries, switch, wiresSpeaker available: 40mm, 29mm, 27mm ... box, music greeting cards, plush toys, sound books, LED lights. Speaker pull-tab switch sound module for music box