Useful. Nanchang Parent-child Card is a special project of Jiangxi Yan Wen Group and Hetian Aiyingbao. Specially designed for the critical period of family parent-child, providing effective and high-quality parental companionship and important content of early childhood education. The contents include: early childhood training, parenting classes for parents, physical and mental rehabilitation after pregnancy, stage play, etc. Integrated card is the common name of smart card. Some smart cards are called smart cards, which have integrated chips, usually very thin, within 0.5mm, including CPU, RAM, ROM and EPROM.