Greeting card Voice module,Pre-recorded module, Parameter: 1,speaker:dia 40mm 2,PCB size:40X30mm 3,Battery:3*AG-10 Greeting card ... record music by yourself at your side Material: PCB board, speaker, battery, press button, and recording IC Voice or music pre ... . Detailed Product Description1.Material: PCB board(40X30mm), speaker(φ40mm), battery(3*AG-10)2.Pre-recorded/recording time: 3 to 300 seconds ...