Voice Chip for Gift Greeting Card Pre-recorded or recordable Customized sound and design Long time ... (slide), light, voice, vibration, PIR, etcSound Chip for Business Greeting Card: pre-recorded or recordable, with LED flash (optional)Messages: voice ... requiredComponents: PCB, IC, speaker, microphone, LED indicator, batteries, wire harness, switch, more or less for different itemsPower: 3 x AG10 button ...