Each morning education machine may be suitable for different ages. Listen to the sound quality of this cow that my baby is using now. The newly upgraded sound quality 2 is a relatively wide age range in the early education machine. Children aged 0- 12 can use it. Don't worry about whether it can take that long. After the upgrade, both hardware and software have been greatly improved. Of course, the single battery reached 6800 mAh. The most useful thing is its upgraded listening function. For children aged 0-6, an original children's growth day class was launched. Each age group has its own curriculum theme and growth goals. Through 20 16 theme audio class, you can accompany your child to grow up for 6 years, which is very helpful for your baby's early education.