1.Greeting card sound module 2.Pre-recorded or with voice recorder 3.Customized sound, design 4.Long time duration Greeting card sound module, with music playing or recordable function, ideal choice for gifts and premiums.Applied for: greeting cards, gift package, promotioanl gifts, etc.Activated: by push, pull-tab (slide), light, voice, vibration, PIR, etcFunction: pre-recorded or recordable, ...