... , voice, vibration, PIR, etc Function: pre-recorded or recordable, with LED flash (optional) Messages: voice, music, and sound, customized sounds ... seconds to 270 seconds, even more if required Components: PCB, IC, speaker, microphone, LED indicator, batteries, wire harness, switch, ... concept into a successful product. Focusing on the future, with our core business in electronic gifts and toys, ESYS ...