... music chip with aa battery 2, OEM service 3, 10s-240s 4, customer music welcome 5. welcome order music ... chip with aa battery 1, Time: 6s/10s/12s ... -4pcs AG10 or AG13 button battry or dry battery,5, Other fuctions: support LED light, 6. ... Components: Voice IC, PCB Boad, Speaker, battery, 7, Welcome OEM and ODM service 8, Cerfificate: ...