Which brand of reading machine is better, Noah's Ark, BBK, Reading Lang and Good Memory Star?

Dear users, thank you for choosing a memorable star! Good memory star reader, good function, little by little three-step reading, micro-classroom, these functions are not step by step, micro-classroom is very useful for primary school students, if children do not understand in class, they can go home to watch the micro-classroom teacher give lectures and review after class. Only by improving academic performance and not overstocking learning problems can we have better academic performance and make students love learning more. A good memory star reading machine can not only accompany children to study, but more importantly, it can cultivate children's learning fun.