Tmall elf. This free morning education machine, Tmall Elf and Tmall Elf can be used to listen to songs and stories for free. Smart speaker is the product of speaker upgrade, and it is a tool for family consumers to surf the Internet through voice, such as ordering songs, shopping online, or understanding the weather forecast. It can also control smart home devices, such as opening curtains, setting refrigerator temperature, preheating water heaters in advance, etc.