Oppo is the original bbk audio-visual co., ltd., and vivo is the original bbk communication, both of which belong to bbk electronic industrial company. \ x0d \ x0d \ IKEA is a wholly-owned subsidiary of BBK. \x0d\\x0d\ means that oppo Electronics and vivo Electronics are brothers and have the same father, BBK Electronics. \x0d\oppo communication and yijia are both sons of oppo electronics. They are called Grandpa of BBK Electronics, Uncle of vivo Electronics and Uncle of BBK Education Electronics.