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