... voice or recording your own voice and play back, with LED flash (optional)Message voice, music, and other soundsLife time ... even more if requiredComponents PCB, IC, speaker, microphone, LED indicator, batteries, wire harness, switch, more or less for different itemsPower 3×AG10 button ... flash modules, we can also provide the sound modules and LED flas modules to you as your requirements, OEM/ODM ...