... time:6~300s 5.Sound chip used for cards Promotion Light sensor music recording greeting card1.Material:250gsm art paper with ... , etc...When you open the card play sounds.Slide switch Module Size: 24x40mmSpeaker size:Dia40mmBattery:2 or 3pcs of L1131 ... package, etc.Activated: by push, pull-tab (slide), light, voice, vibration, PIR, etcFunction: pre-recorded or recordable, with LED flash (optional ...