... duration5.record sound need use our softwareProgrammable sound module/chip for greeting card,customized design is accepted.Customer can program the ... if needed4.speaker size:Dia 29,40, is avaiable for choice,accept customize.5.PCB size:70mm*30mm;40mm*25mm ... option:pull-tab switch,push button,light,motion,vibration activated the sound9.battery:2 or 3 cell battery for different item10.application:paper ...