... , ic board , cmos chip .Greeting CardsMusical chip with music playing or re-recordable function, ideal choice for ... light, voice, vibration, PIR, etcFunction: pre-recorded or recordable, with LED flash (optional)Messages: voice, music, and sound, customized ... duration: 6seconds to 30 seconds, even more if requiredComponents: PCB, IC, speaker, microphone, LED indicator, batteries, wire harness ...