... Voice duration time: 6 seconds to 60 seconds, even more if required.2. Components: PCB, IC, speaker, batteries, wire harness, ... of our melody chip is vivid. ComponentsPCB board,battery,speaker,plasticActivated bysqueeze button,push button or at your optionDuration ... and OEMAcceptMusic formatMP3 or WAVCertificateCE,ROHS,Advantages:More than 6 years development give us more experience Superior quality ...