... your side Material: PCB board, speaker, battery, press button, and recording IC Voice or music pre-recorded time: 3 to 300 seconds ... for back adhesive function Can set regular music on it or record the message by yourself. Packaging 1000pcs/caton Carton size ... . Products comply with CE, ROHS,EN71,FDA,,etc and successfully exported to USA, UK, Germany, Japan, France…etc Push button sound module/voice ...